There is a storm over the city and its streets are traversed by countless vehicles and countless people coming and going with their umbrellas and parasols.

In this city, in the heart of it, there is an incredible building, which has the appearance of a monastery, and in its interior, a peculiar form of life is sheltered, it is vegetable.

This tree has the peculiarity that its petals always fall in enormous quantities, but its foliage never ends.

The cause of this phenomenon is not known, but it certainly happens, and this is the cause of admiration for this plant being, among the secrets of its simplicity lies the mystery of something deeper for those who are observers.

"Its simplicity defies something as complex as eternity itself," these are the words of a man who admires this tree.

This person wears elegant glasses, his trench coat and tie give a professional style to this person, and his left eye is peculiar for having an orange color in its iris, and his right eye has a black color eye.

On the other hand, another person, a young man who was sleeping, suddenly gets up from his apartment bed.

The torrential rain that floods the city invades the atmosphere with noise.

This young man seems disturbed.

A memory appears again and again in his mind under a compulsive obsession, and it overwhelms him.

This person only puts his right hand on his face, perhaps trying to calm his headache with such an action.

One of the most important families in this place is a dynasty known as Sakurasuka.

The person who was in that apartment goes to a certain place, it is a train station with a headed destination address that is located on the outskirts of the city. This person boards the train.

It is raining heavily outside.

The presence of nature indicates that this person's destination is a somewhat rural area. The day continues with black clouds in the sky, and, although the rain has stopped during the traveling, however, it may rain again at any moment.

This person, in a white trench coat, with black hair and white fur, walks with a serious face somewhat depressed, gets off the station where the train has stopped, and begins to walk in a specific direction, which seems to lead to a series of concrete roads leading upwards to a kind of mountain.

There are houses all around and all have artistic fountains made of bamboo in the respective garden of each house.

While this person is walking, through his cellular device he has received a call and he answers.

"Shiro Sakurasuka?," asks the person who called the young man.

"Yes...," the young man answers roughly.

"I'm glad you're the one to take care of our problem! , "said the woman, relieved.

"I'll be there soon...", says the young man.

"We'll be waiting for you, thank you! , "said the woman, hanging up the phone.

The call is cut off and this young man continues his way through paths surrounded by nature.

After much walking, he arrives at the place that has motivated his visit.

A woman welcomes the young man by greeting him very politely.

"Welcome, please come in, "The woman pretends to receive the young man by having a cup of tea first, as usual in this place.

"I came directly to deal with the problem, I have other matters to attend to in the city...," the young man affirms.

"I understand, come with me...," said the woman heading the young man in a specific direction.

Many people come out to bow to this person in white as he enters the chambers where he has been addressed.

Immediately, the rain begins to fall harder.

"My daughter has made a blunder, she has been conjuring powers of ´Obscurias´ to revive the memory of her deceased loved one, she has succeeded, but, these creatures have taken over her completely, is there a way to help her?! , "asked the desperate woman to the young man, hoping for a miraculous action.

"You know very well that these beings devour once they pounce on their prey, maybe there is not much to do...," says the young man.

The woman only cries disconsolately.

"Please, at least remove that impurity from here, please try not to let that memory remain as an echo in this place!,"  implores the woman with great fervor.

The young man was taken to a gigantic door that looks like the door of an ancient temple of the place, inside that temple, tremendous noises of strange wild creatures are heard.

Another person who usually guards the gate, who is a somewhat older man, is very frightened.

"By the sickness of a feeling, she let herself be corrupted! But we couldn't do anything to save her..., "exclaims the man in great confusion.

The young man bravely and confidently opens the gates, and as he enters, he sees that there are creatures, at least five of fearsome appearance, covered with blue armor which remains around the woman who is unconscious on the floor.

Those beasts, which seem to have no mass or weight, lunge at the young man, who disintegrates the first monster that tried to attack instantly, turning its essence into a white halo. The other four figures, frightened of that young man, merged together and created a gigantic monster where the entire body rushes towards the young man who remains extremely confident and serious, even without having moved from the entrance of the place where he is.

With a wave of his hands and his mudra-like fingers, he has completely undone the figure in moments.

At first, it seems that this person has not done anything or generated anything special, however, it can be seen that spheres of strange material revolve around this young man.

One of these spheres reaches the palm of the boy's hand, and he disembowels it. When he does so, whiteness is released and when it vanishes, a garden of white flowers instantly grows around the young woman.

That young woman was holding in her arms the living body of the young man that she loved, however, that body was perishing in her arms again and just like that body, she was becoming disintegrated, her biological composition was becoming blue dust as the one she was holding.

The mother of this person and the man who witnessed all of this were stupefied and by inertia run to the girl.

The young man who has destroyed the Obscurias only closes his eyes in respect for the tragedy.

"This person has died because of the monsters of his own past, generating a memory and materializing it in reality, that action generates disturbances of the things that were lived, creating abnormal beings by materializing them in a present in which they should not be. Materializing them in a present in which they should not be, is essentially corrupted thinking materialized in reality that is called the Obscurias, the monsters that are conscious of a disturbance of the past generated by ourselves. I heard that even memory is able to be immortal and remain through time without dying through oblivion, but just like people themselves, a memory needs to die, and when they materialize in the present, their distortion is imminent," this young boy thinks to himself as he observes a scene which he seems accustomed to watch

"Your memory will live on inside me, I promise! I will not let that other man we all remember usurp your place!," said the young woman's mother with great despair.

Which man is this woman referring to specifically?

The Sakurasuka only remains silent and leaves the place, collects the agreed money, and returns by those roads that led him to that place.

"There are memories that we do not want to die and others will not be extinguished, no matter how much we want them to," says the young man in a low voice as he leaves the place since the job is done.

Recently in the city, there has been an abnormal phenomenon happening, everyone remembers a person they have loved, but they don't know the person's name and at the same time everyone remembers a person they have never met, and they hate him to death.

How is this possible?

Countless families remember certain people who were once theirs, but they are no longer theirs since those people vanished, and when they try to project their memories, the projected entity becomes an Obscuria.

This is why now those accidents that occur in which strange entities are materialized by the desperation of people trying to calm an inner pain, to remember their loved ones whose names they do not know.

The same happens with the person that everyone remembers with hatred, for some reason.

This is the same for the young man in white who has done his work and this is his cause of sadness, as he remembers a loved one important to him, but not his name.

"Thinking of only one person all the time makes you sick at heart," the young man says to himself as he returns to the path he had taken earlier.

The rain continues to fall throughout the city with heavy intensity.

Young Shiro Sakurasuka enters a certain room to visit his mother.

Nami Sakurasuka is his name.

"My son, how good to see you already arrived," she said with a smile.

"Mother," said the young man approaching her.

"Son, are you ready to face what awaits you?"

"Yes, I am," he said with confidence.

"You will be part of the political dispute for the honor of our family. It is a pride for me that you will be part of the Sakurasuka's representation in this matter, your sister will be with you equally on the battlefield....," she said with hope for a positive result for Sakurasuka family.

"Seven against seven, right?" asks the young man.

"It has always been seven against seven. The seven best members of each family," she explains to his son.

"When will this conflict begin?" he asked with a worried face.

"When the Sakurakuza Family has its members ready to participate. We will notify all of you in advance so that everyone will be ready to fight...,"she said with a proud feeling on his son and daughter since both of them will be comrades on the battlefield.

In this city, the prestige of the dynasties is necessary. The Sakurasuka family and the Sakurakuza are opposite rivals since historical times, the duel of these families is very important since the one who wins has the power to rule the political power of the place for five consecutive years.

The young Sakurasuka leaves the place where he was talking with his mother.

"Will there be another way to solve this conflict?" said this young man to himself while many thoughts clouded his judgment. Regardless of his battlefield experience, he feels nervous.

These families also sustain their power based on a special power that they control, and this is called Echo.

They call this power like that since thanks to this energy they can have a connection with memories and thoughts, and it is possible to generate projections into reality.

There are levels of projection using this type of force, the most experienced can become a real headache in combat, since everything they remember can bring it to reality without any problem.

Not all people in this place know how to control this, so it is clear that these two families have among their many members very talented people using this power.

The young Sakurasuka is now in the heart of a certain building that is similar to a huge temple that houses a very peculiar plant species. A cherry tree expels its foliage greatly, but never seems to end.

It is considered a heritage of this city and is considered by all as a living legend. The origin of this tree is uncertain, and many theories abound around it, but it certainly has been there for as long as people can remember.

At the side of young Shiro Sakurasuka a certain person arrives at his side.

A person with black hair, white complexion, and elegant glasses, dressed in a black trench coat, and underneath he wears an impeccable full suit with a dark blue tie.

"This tree is fascinating. I always come at this hour to contemplate it...," says that other man, amazed at what he sees.

"Hazuo Sakurakuza," says Shiro.

"It's good to see you again, Shiro...," says this man, smiling gently.

"Are you still working as a public administrator?"

"Part-time, right now I'm concentrating my studies in the field of biochemistry," said the man with a tone of superiority.

"I guess, you want to study that because of this tree, right?" asked the young man like reading an open book in the intentions of Hazuo.

"I think I have to be more discreet, you are really right, this being has inspired me to understand its nature, or at least try to decipher it..., "said Hazuo with some impetus.

The young Shiro turns around and apparently intends to leave the place, only, he stops halfway because Hazuo has spoken to him.

"Some people say that the conflict is going to start soon...," mentions Hazuo  as one who wants to get information through slight comments.

"That's right...," affirms the young man.

"Are you going to participate, Shiro?"

"Yes, are you also a candidate of the Sakurazuka family? "asks Shiro with some suspicion about Hazuo.

"No. For now, I'm only interested in studying, I'm not interested in fighting..." says Hazuo without looking at Shiro.

The Sakurasuka young man continues walking, headed to the building exit.

"Don't die, Shiro, I still have to pay for the tea you invited me to in that restaurant...," says Hazuo with a certain irony.

"I hope I can give you that opportunity, see you next time....," said Shiro leaving.

Even though these two people are from opposite families, they get along very well. Many people in the city behave in the same way, only when political tension surfaces again it causes division among people.

The rain is coming down hard and this Sakurasuka young man walks in the rain without an umbrella.

From among the streets he is walking along, a car stops next to him, where on the driver's side, Hazuo, the same person as before, speaks to him loudly so that his voice can be heard in spite of the rain....

"It's raining too much! I'll take you home...," says Hazuo.

Shiro climbs into the passenger seat.

"The rain hasn't stopped for a long time, you should take care of yourself Shiro.....," warns Hazuo.

"As far as I know, water does not kill. I think it's more dangerous to have climbed on knowing that you're the one driving...," says Shiro teasing.

"You underestimate me...," said Hazuo while gently smiling at him.

"Anyway, I thank you Hazuo...," says Shiro grateful for helping him to avoid this intense rain.

After a while, the car arrives at a certain house that is located in a certain residential place, where a young woman is waiting for someone with an umbrella outside what seems to be the house where Shiro lives, which is among very quiet neighborhoods where water is pouring down.

Shiro gets out of the car and is greeted by his sister, Shirai Sakurasuka.

"I was waiting for you, irresponsible! I knew you would come home without an umbrella! You even forced Hazuo to bring you!"  she said while scolding him.

"It's been a long time since I've seen you, Shirai!" Hazuo exclaims, happy to see her.

"Hazuo! Let me tell you that you look great, the years don't seem to go by for you!" she exclaims with a gentle smile.

"Thanks for the compliment...," says the man, very flattered.

"Why don't you stay for dinner?" she asks.

"I have unfinished business...," said Hazuo like avoiding the invitation.

"Hey, you can't refuse to taste my sister's food...," comments Shiro threateningly.

"Uugh, I guess I don't have a choice...," said Hazuo without choice.

That man parks his vehicle and then enters the house.

These three people are going to enjoy a moment of tranquility, even though some chaos is about to break out in the city, but even more, the young Sakurasuka can't get rid of the worry that even this time his sister will be involved in this matter...

"So you two will be there, there is a possibility that I won't be able to see you again...," commented Hazuo.

"That's why I wanted to invite you, Hazuo. In case we don't see each other again...," says Shirai sadly.

Hazuo just stares at the cup of tea served to him, observing his reflection in the direction of his left eye...

"As a member of the Sakurakuza family, I can't wish evil to my own family, but I can't wish evil to the Sakurasuka either since you belong to the Sakurasuka family. I only hope that both of you can survive...," said the man as one who tries to bring some hope to the conversation.

Once the meeting is over, the one who has been invited leaves. He gets into his vehicle thoughtfully and takes a while to restart it, but not before activating his wiper blades because of the rain that continues to fall.

"So things are getting difficult for me again...," says Hazuo while smiling at what he said.

What did he mean by that?