Daniel has two bodies. His original body used to be short and overweight, now he's a lot more handsome, tall and muscular, and his second body is of tall height, thin and handsome and stated to be perfect.

In his original body, Daniel is usually bespectacled, and short to the point only Duke Pyeon and Crystal Choi's original body near his height. Daniel is extremely overweight, which is why Logan calls him "Pikachu" (Dog in anime).

Daniel's first body is deemed unattractive by most, if not all, the exceptions being Crystal and Zoe. In this body, he's exposed to the true nature of society. Daniel uses this body at night to work part-time at a local mini mart, which is why it's usually seen in his work uniform.

Despite the difference in weight and height, his first body gradually begins to resemble his second. After his fight with Logan Lee and the incident involving the homeless man who broke his glasses, Daniel's face is more striking, and he's noticeably taller and slimmer, measuring up slightly taller than Zoe in height. After intense dieting and training with Sophia, he loses over a hundred pounds, so his original body is practically identical to his second body, though it is shorter. After Gun's training, Daniel has grown very tall; nearing his second body in height. Daniel has also put on more muscle mass, making him look more defined, he looks really similar to his second body in chapter (424). His face looks quite identical to the second body as well. It was stated that he resemble a younger Jinyoung Park, and even his grandmother confused him as Jinyoung Park.

In his second body, Daniel has no glasses, and he's tall. He has a healthy, athletic build, being incredibly gorgeous and handsome - this being his most notable trait, usually leaving woman infatuated and men intimidated. Daniel's good looks make people think he is a famous model, idol, or star (which he eventually becomes) as they go far as to ask for his autographs and pictures with him, much to his shock.

No one has ever been stated to surpass Daniel's good looks, and no one retains the center of attention as he does (albeit unintentionally), as a result, his second body is the most popular student at J High. He uses this body to attend school and it's usually seen in his school uniform, unless elsewhere.

Daniel is a very kind and friendly person at heart, preferring to avoid unnecessary conflicts if he can, but will help those in need even in dangerous situations.

Initially, due to being bullied, Daniel would take out his anger to his mom. However, he began to realize just how much she sacrificed for his sake, filling him with deep feelings of self-loathing and regret for his actions towards his mother to the point of vowing to be a better person. He often cries whenever he is reminded of how he treated her, such as when in his second body, he was asked to act out a certain role as a test to see his acting skills only for Daniel to cry while reading the script as the part was similar to a part of his life, he regretted the most. So as to not trouble his mother financially. Daniel is very humble and responsible as he does not bother with materialistic things unless they cut down on his or his mom's living expenses (e.g., rice cooker) and is willing to work so he can pay his own living expenses.

Daniel is very sympathetic and protective of those mistreated, either because of their lack of strength or because of how unattractive they are, as he can relate to how both feel and is prone to stand up for them. Though it is implied in the Runaway fam act he is respectful enough to not interfere in other affairs without permission.

Lack of self-confidence is often Daniel's biggest hindrance slowing his progress on his goal of trying to be a better person. In some cases, it leads to his being perceived as a pushover who is nothing but a coward. Fortunately, Daniel is constantly inspired by those who diligently work towards their goals, such as Euntae and Duke and is motivated to out more effort into overcoming his struggles to achieve his goals.

Due to his lack of social interaction with people around him prior to having his second body, he can be naive, much like Euntae, and is unsure how to act when placed under peer pressure. Likewise, he is easily deceived by perceived kindness. For example, he once accidentally agreed to become a host in a club and escaped the club while drunk. Moreover, he thought that Yui genuinely liked him for who he is while in his second body but was shocked when she treated him cruelly while he was in his original body. He also never smoked or intentionally drank before and didn't know how to refuse when putting under pressure to do so. However, this tends to create humorous situations and misunderstandings about him.

After temporarily losing his connection with his current body and being helplessly bullied by Logan Daniel regressed back into his old self before moving to Seoul. But after realizing Daniel gets a way better appreciation for his old body and becomes more confident in it.

Daniel tends to become belligerent, overconfident, and apologetic while drunk. In later arcs he is seen to also have an aggressive personality when in a tense battle.

Daniel was raised by a single mom, and they lived in poverty. In addition to his poor living conditions, Daniel was looked down upon due to his appearance, leading him to be bullied at school (mostly by Logan). No longer willing to put up with the bullying, Daniel's mother offered him a chance to transfer to a different school (Jae Won High). Daniel, unable to bear with his school troubles any longer, tearfully accepted.

Upon moving, Daniel's dreams of starting anew were quickly shattered by a humiliating defeat at the hands of Zack Lee, captured on video. With the video going viral, he cried himself to sleep only to awaken the next morning in a completely new body. He discovered the following rules:

1. He has to sleep to change bodies. 2. If one body is forcefully awakened, the other body will go to sleep. 3. The sleeping body has to be cared for like an actual body. 4. He is conscious at all times (cannot have dreams). 5. In a state of lost consciousness, he cannot change bodies until the other body recovers consciousness. 6. The sleeping body experiences all physiological phenomena normal bodies do.

Daniel is actually a natural-born fighter despite his lack of confidence and any formal training prior. Regardless of which body he is in, Daniel can memorize any technique down to its textbook mechanics after seeing it once and execute it with the same amount of competency as a skilled expert. In addition to this skill, he possesses incredible foresight in a fight, able to clearly see all attacks his opponents throw at him. Whether or not he is able to dodge the said attacks usually depends on his opponent and Daniel's current body. Daniel's ability to copy other people's techniques is so amazing that to others who fought Daniel felt like they were fighting themselves. Later on it was stated that Daniel's ability to copy others Techniques were farr superior to Johan Seong (another copy cat genius) stating that Johan only imitates others while Daniel is the real deal (which correlates with him being as competent as a Skilled master in that martial art or field) in the more recent chapters whenever he copies a character his hair or physical appearance turns similar to them. Further his fighting senses were so accute that he was able to catch Gun (while in trainning) and DG offguard while fighting them which proved his calm and levelheaded attitude even in strenuous situations. According to Gun, Daniel has the eyes to figure out his out his opponent, but he isn't able to use it to its full strength. If he focuses, he can see more.

While not on par with his second body, his weight does add an Incredible amount momentum to his attacks unleashing them with such surprising force that he even forced Euntae (who possesses unbelievable strength) to resort to knocking him out when he felt he could no longer withstand his punches. He rarely ever fights in this body due to his lack of confidence while using it, but as the series progresses, he does become a more capable fighter, especially under Vasco's strict workouts and guidance despite him not being aware of it. In this body, he severely lacks the desired reflexes he gains in his second body. Despite being able to see the attacks (even once commented of how slow they were), he was still not able to physically dodge them due to this body's lack agility and reflexes. It should be noted that if attacks are executed by non-skilled practitioners, even in this body, he has no problems defending against them. Despite its many shortcomings Danielle first body still has impressive strength and endurance as he managed to take and multiple hits from Logan Lee and recover form the experience with no lasting injuries. Even chairman Hong was surprised that Daniel took an attack from Sophia and survived while most can not. With enough determation, his fat body could take out a person with little or no fighting experience. Daniel trained his body becoming recognizable to most people in this new form looking closer to his second body than his first, even Zoe Park and Logan Lee did not recognize him as the transformation was extreme. The weaknesses his body has are now gone as his body is faster with the addition of Systema. He has high tolerance to drugs that the drugs that were in the cookies were ineffective. Later on, he us trained by Gun as a potential successor, making him a far more fearsome fighter, he is shown to easily beat a Workers Executive and even throw Xiaolung, who us known for being a powerful opponent to many. He is also seen countering Yuseong's attack by blocking his fist and using the other leg between to kick him into the ground. He has gotten so strong to the point where Eugene even compares him to a First Generation King.

In chapter 438, he was able to use "Self-Hatred" mode in his Original Body just like his second body.

In chapter 439, Daniel was barely able to copy the moves of James Lee, but he was not as fast as him. Jichang praised his strength and said he understood why Seokdu lost and why Taesoo got fired up. This máy imply Daniel was on the level of Taesoo or Seokdu.

In chapter 439, Gun taught him about Subconscious by choking Daniel on the neck and gains an ability to use Ultra Instinct again just like his Second Body.

In the current arc as of chapter 453 it is known that he can take on someone on the level of Jichang Kwak (being superior to the same only when using the Ultra Instinct), who himself is stated that brute strength wise is on par with Gun Park (stated by Daniel Park himself), and Jichang Kwak was someone that even Elite (Charles Choi) was interested in becoming his bodyguard before he took Jichang's life.

It is also shown in the recent chapter that Gun mentioned that Daniel's copy ability was inefficient in his old body earlier as he could not generate the same power while executing the techniques that he copied, but after his training with Gun his body became strong to such level that Gun mentioned that he could now easily imitate all the moves of Gen 1 Kings almost perfectly (including Taesoo Ma's Fist techniques).

In the recent chapter he copied Kwak Jichang's Hand Edge Technique perfectly while fighting Logan Lee and pulverized him thus defeating him easily.

In this body, Daniel is among the strongest in the entire series. Even before he developed bis techniques and skill, he was able to defeat most opponents, solely relying on reflexes and instinct and is one of the few characters to naturally be on the level of skilled fighters with no prior formal training, the other being Johan. This, coupled with Daniel's ability to instantly replicate any fighting skill he sees just once, makes him one of the series' most formidable fighters by outdoing many others with their own fighting techniques.

It seems Daniel has become used to his abilities and immense fighting prowess in this body, able to dodge attacks merely on reflex with extreme ease, even while in deep thought. In some fights, he has found some attacks to be annoying.

His biggest testament to his fighting prowess is being one of the only people (the other being Euntae) that Jong Gun, a fighter of legendary status, acknowledges even more. Gun stated that, although Crystal was heading for a dangerous situation, if she is accompanied by Daniel and Euntae, then she's not in any real danger. However, he is not yet on the level of Jong Gun or Joon Goo, as he was easily defeated by Gun. Meanwhile, Euntae, his fighting equal, was soundly defeated by Jake Kim, who Gun promptly defeated.

So far Daniel's biggest weakness is that his compassion can often lead to unfair or synchronized fighters like Chuck Kwak and Justin Peng to overwhelm him. He also can't copy the determation that comes from the moves he copies, which makes opponents like Zack hard to fight.

Daniel's last trick is when he enters a state known as "Ultra Instinct", in which he is rendered in a state between conscious and unconscious. He is able to maximize his fighting potential by utilizing every single move of his knowledge without hesitation. In this state he is so powerful that he is able to suppress Jerry Kwon and even able to break one of Gun's arms in their one-on-one fight. He was able to defeat 2 Crew Head (Jake Kim and Samuel Sẹo) simultaneously. He then preceded to easily defeat Jerry Kwon and Lineman. After that, he completely dominated a raged Johan Seong in their fight. Although, he was not able to defeat Goo because he suddenly passed out, he still inflicted a huge damage on him. The downside of this state is that he is unable to control himself, making it difficult to discern between friends and foes.

In chapter 467, Gun has stated that Ultra Instinct was able to control (Gun Park can control UL) and the one who can control it can "adjust" their strength whatever they want. The one who aren't able to control UI will "adjust" their strength based on the opponents. For example, if the opponent is weak, UI will adjust its strength being weak for that opponent. If the opponent is trong, UI will just adjust its strength being strong for that opponent.

While he and his real body had the same techniques and movements, Warren states that Big Daniel had more experience using those techniques. Its as if he's more practiced and the Little Daniel was simply copying him.

In chapter 470, Jinyoung Park said that Daniel's strength is on the level of the ones whom the Gapryong fist was fighting against and he is way past the level of the 2nd and 1st generation and also said that he wanted to see Daniel and Gayryong in a fight this implies that he is around the level of Gapryong Kim.

Boxing. Muay Thai. Kyokushin Karate. Taekwondo. Systema. Sophia-style. Wrestling. Capoeira. MMA. Aikido. Invisible Attack (while he himself doesn't have the speed for it to be truly invisible and on the level of Sinu, James and Elite's when it comes to speed with the attack, but he has copied the concept). Hand Edge Technique. Hard Fist. Kim Gitae style. CQC. Kim Gapryong style.

1. Daniel is based off Taejoon Park's younger brother Hyungseok another Ulzzang whom he is also named after in the original Korean version.

2. Whenever Daniel gets drunk, he becomes very aggressive, cynical and angry. He also gets stronger; at one point, he was able to crush a phone into pieces with one hand.

3. He bears a lot of resemblance to Yu Narukami in the first chapter of Lookism. In that, the two of them wear similar hairstyles and personalities to one another.

4. He has a beautiful singing voice, as seen in the Festival Arc in both the manhwa and anime, everyone was in awe hearing his performance alongside Duke. Furthermore, his singing voice was given life by Hwang Chang young for the anime song "Fly Up".

5. Due to his handsome and athletic looks, he becomes the most popular guy at his school.

6. Daniel's Japanese name Keisuke means "firefly" (kêu) and "help, assist" (duke). Keisuke's surname Hasegawa means "long, chief, boss" (hạ), "valley" (sẽ) and "river, stream" (kawa/gawa).

7. In Korean, it literally translates to a Night, Mold seat (it also refers to him changing bodies at night and morning).

8. He experiences the lookism (discrimination against people of certain looks).

9. Old body: 160cm to over 170cm (much taller than Zoe Park and also Crystal Choi) to unknown (much taller after being trained by Gun; estimated between 5'9 to 5'11).

10. Second body: the official Japanese game information itself stated the height is 182cm; originally, it was guess around 181cm or 182cm. Some guess the height is probably higher now, around 188cm, after being shown to be taller than Zack Lee in multiple panels from growing like Zack.

11. According to Gun, when Daniel (original body) goes into his ultra instinct mode he is able to defeat a 1st Generation King.

12. Tom Lee has seen Daniel's wiener on both his bodies.

Zack's height is somewhat tall, and as a result of his physical training, he has a sturdy, muscular physique, at one point reaching 99.8kg (199lbs).

He has slicked back black hair that is cut short on the sides, though his hair had been shaved off as a result of him getting into a fight after promising not to. After this incident, he started wearing a wig, after some chapters that had him in it were introduced, it's most likely he grew his hair back.

He has a very good fashion sense, paying attention to his looks when it comes to outshining his peers. He tends to wear gray scale colored brand clothing. On several occasions, he has worn earrings. Currently, he's wearing Gongseob Ji's clothes and glasses when he was younger.

Zack has a serious resting face, with sharp glaring eyes, which in turn, easily intimidates those who look at him. He only occasionally smiles, and he only smiles when he is with Mira or when he is fighting someone of great strength and beating them. He wore a wish bracelet, but it had been took off years ago.

Prior to meeting Daniel, Zack was somehow kind at heart despite his poor manners and extremely high imprudence. He had helped both Mira and Johan in many situations regarding their pasts, such as rushing Mira to the hospital and saving Johan from bullies, but this kindness was reserved for those that are close to him. As shown in the Cult Arc, Zack was ruferred to as the strongest of his middle school. This greatly boosted his ego which, when in conjunction with his very short and bad temper, was the reason for most, if not all, his fights and was also the reason for his violence towards the weak.

After meeting Daniel, Zack slowly changed in ways that he isn't very attentive to, although other characters such as Mira Kim have. Under the circumstances of promising his love interest not to fight, he's had to put a clam face towards those mocking him, and he learned the lives of his own victim felt. He realized his immature empowerment actions were wrong, and began to stop bother those under him, even being shown to be remorseful. Peers commented on this behavior, although to Zack it just felt like a bother to waste time picking on others. He matured impressively in a short life span due to his tolerance.

Although he has become somewhat diplomatic, he will try to reason with people that attempt to bother him, preferring to avoid conflict. Regarding his treatment towards others, he will tell people off for unjust actions, but tries to manage it before it resorts to violence. He controls his temper and apologizes, even if nothing is his fault. This is because he doesn't want to make Mira unhappy by having physical alterations with others, and results with others believing he's weak-willed.

Zack has a strong affection for Mira Kim even since they were children. He cares for her deeply and attempts to impress her without making a fool of himself. He gets exceedingly jealous when others flirt with her, he is always considering keeping Mira safe from others due to her bad memories of predators. Although this plays off to be a lap-dog trait, always doing everything Mira desires of him.

Despite the fact that Zack has developed into a person that truly wants to protect his friends, he is very hard on himself. He continues to blame himself for the fact that Jiho had attempted murder that Jasmine ran away, although that's not the true underlying case. In addition to this, he had worked his body hard and trained for countless hours every day to achieve his goals of being stronger than Daniel and Johan, wanting to beat their mysterious talents with his pure effort. Zack pursued defeating Daniel, however Daniel awoke in 'Ultra Instinct', showing his true capabilities, and Zack continued to look down on himself for not being strong enough to obtain a victory.

After resuming training, Zack has shown himself to in complete subscription to boxing as not only a fighting style but fighting philosophy. The latter trait expressed with him taking 1-minute breaks after 3-minute intervals during his latest fight with Daniel Park (emulating the format of real boxing matches). In addition, he staunchly takes pride in his status as a boxer, calling himself a "professional" who would not engage in street fights. Despite that, he states that if he is to engage in street fights he would do so not as a boxer aiming to win but as someone aiming to kill.

However, due to a bevy of defeats at the hands of Johan, Daniel Park, Mandeok, among others, Zack has shown a keen neuroticism concerning winning fights. This has led him to adopt dirty boxing as his trump card when pressed against stronger opponents, something which he loathes due to his pride as a professional. As such, when in this state of neuroticism, Zack acts in an exaggerately morose and depressed manner whilst maintaining his aggression - verbally lamenting his inability to win without resorting to dirty boxing.

After not being able to get a single win against anyone in the 2nd Affiliate, even with dirty boxing he was at a loss. He lamented about how everyone else around him was getting stronger and he seem d incapable of being số, frustrated to the point he didn't have any tears to cry about it anymore. His pity party was cut short when Cho Ma and Gong Ji found him sulking. After criticizing him for fighting, they told him to go to Daegu if he wanted to go continue ruining his life by getting stronger. There he found Gongseob Ji, a 1st Generation King who once ruled over Daegu. while hesitating at first to train him, Zack managed to touch Gongseob's heartstrings and began to learn iron boxing. While physically training him was part of it, the most important thing Gongseob trained Zack was mentally. In a month, Zack became a different person, no longer was he a guy quick to anger or someone filled with neuroticism, going down to the path of self-loathing would leave him as a bird trapped in a cage unable to fly. He would only become stronger once he took pride in himself and everything he learned, and Zack Lee achieved it with flying colors.

He became someone who believes in himself and his abilities, now trying to block out any form of negative thoughts not cloud his judgment, and has even picked up the habit of crying out to the Buddha as a means of calming himself. After everything he's been through, Zack Lee has finally become a bird able to fly, now confident with the person he uas become and no longer burdened with his shortcomings.

Zack comes from a rich family referring to $500 as pocket change. During the early parts of the story he was seen spending his money on top-notch clothing to impress Mira.

Zack has known and had a crush Mira since childhood. He used to accompany her on various extracurricular activities, not out of his own interest but rather to spend more time with her. Mira was the one who introduced Zack to the world of boxing being of the activities she was attending at time.

At some point, he befriended Johan who was going to the same church he did when they were young. Zack wasn't awake of Johan's fighting potential until he saw him copying one of his boxing moves. Zack knew Johan had feelings for Mira, and it was part of the wedge the drove the two of them apart.

Having once enjoyed the bullying of the weak, Zack has since changed due to the influence of Mira, who he is in love with, and is now on good terms with both sides of Daniel Park.

Zack is a very capable fighter who can hold his own against most of his peers in school and was placed in the same caliber as Vasco and Daniel. Unlike Vasco and Daniel, zack had neglected his training for quite some time as he was confident that his fighting ability was enough to hold his own against any opponent at the start of the series. His pride in his abilities has since been humbled by the staggering number of formidable fighters around him who possess even more talent than him. Once realizing he's no longer able to fully protect Mira, he has decided to resume training with a mindset that his hard work would surpass his enemy's and friend's talents.

Zack is a proficient out-boxer, having trained since childhood and is considered a formidable opponent by his peers due to his outstanding talent earning him achievements in numerous competitions. His type of fighting style is a hit and run outboxer. Zack's out-boxing style is typical, relying heavily on speed to deliver quick combinations utilizing straight punches with little in the way of body blows. This fighting style effectively placing Zack in a position to attack and denying his opponents counterattack. When pressed, Zack will normally use his footwork and head movement to evade.

When in a situation in which blocking is absolutely necessary, Zack has demonstrated an impressive understanding and application of the Philly Shell, a style popularized by Floyd Mayweather Jr. This style is characterized by the usage of the shoulder roll, resulting in opponent's punches being deflected and diffused off of the user's round shoulder.

Only a handful of fighters can actually keep up with Zack and dodge his punches such as Daniel Park and Johan. As such, Zack's speed has been used as a benchmark for other fighters. If the said opponent in on par with or surpasses Zack's speed, they are considered threats not to be taken lightly which is a further testament to the danger Zack's speed possesses.

However, as a result of Zack's reliance on his speed, fighters that equal or surpass found themselves in a position much more favorable to victory.

However, Zack is not set in his style, having created counters to techniques used against him such as being able to respond to Daniel's utilization of a body blow in Zack's later fight with Logan Lee. Beyond skill, Zack has also demonstrated vast improvements to himself after resuming training, giving up his pride in exchange for grit and determation. On a mental level, this has given Zack greater endurance and resolve to see his strategies through such as enduring Daniel Park's attacks to formulate his own counterattack. On a physical level, this has resulted in Zack becoming immensely more powerful, stunning Johan and Daniel in a past fight with narration stating that he has the style and tendencies of an out-boxer but the power of a in-fighter.

However, despite Zack's continual efforts to become stronger now, he held an inclination to not train in other styles, sticking only to boxing. Even when pressed to train in a mixed martial arts setting, he refused, and continued with boxing, despite his own coach's admission that Zack has essentially mastered all of boxing's techniques with any further advancement coming in a form of physical training. However, as of Chapter 352, Zack has begun to "discard his pride" and now utilizes dirty boxing, having used head-butts and pivot blows (spinning backfists). This could lead into a transition to other forms of martial arts. Recently, he enjoyed using chains as a weapon.

He loses confidence due to repeated defeats, falls into a state of self-loathing and his body starts "burning up". This is called heat modem it occurs when feeling self-hatred for not being able to achieve something. The body becomes really hot to the point where your heart is about to burst, causing you to have an awakening in strength.

Later on, he is trains under Gongseob Ji, a king from first generation whose fighting style consists of being able to deal with and dish out heavy damage. This is shown by him being able to not only take hits, but also deal overwhelming damage to Mandeok Bang, who had previously been able to one-shot Zack.

After his training is finished to teams up with Daniel and Vasco to fight against the Workers. Eventually, after the battle is finished Zack joins the Allied crew.

1. Whenever Zack Lee is drunk, he becomes a weak, weeping face, even hugging and kissing Daniel.

2. Some have said that an appearance of Jin Sung resembles to famous tattoo maker, Kiji (named after Instagram: Kijikush).

3. Zack english's name is the same as Zack Lee, an Indonesian born British boxer and acter.

4. One of the supporting characters, Ma Cho Il (student of the 2nd Fashion Department), resembles of the face of Jin Sung. The difference between the two us his long curly hair, while Zack keeps his fringe of hair gelled back.

5. He was an atheist however, after he met Gongseob Ji, he converted to Buddha.

6. When a state of motivation, Zack's eyes are drawn glowing blue.

7. In Chapter 27 of "My Life as a Loser" (another series by Park Taejin), a boxing genius named Gu Sangmin is said to be the 3rd best in middle school boxing competition. Zack Lee (2nd) and Johan Seong (1st) are the two who he could not beat.

8. Zack possesses phasphaphobia (the irrational fear of poltergeists, ghosts, and other similar creatures).

9. In episode 14 of webtoon he was able to get the highest score in the arcade punching bag which was 882, but it was shortly beaten by Vasco with a score of 910.

10. Early in the series, his height was 180cm~182cm (before training); then, it became 185cm (after training).

11. In Chapter 428, James Lee mentions that Zack must improve his breathing control to emulate Gongseob Ji.