Suppose you were isekai’d (transported) into a manga/anime world—specifically the work Tokyo Revengers.

What would you do?

The time you can stay there is limited.

The character you can choose is limited.

You are transported into an existing storyline, and from then on, you must fend for yourself and live through the experience.

No matter what method you use.

Within the limited time, you must complete the mission given by the system.

That mission is: win over the male protagonist and create a happy ending!

Before crossing over, you will be placed inside the pre-existing plot.

Main character, personality, and mission completion will be set.

If you exceed the time limit → mission failed.

So… are you ready to join this adventure?

Now then… let the game begin!!!

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“Starting to scan player”

Name: Y/N Height: (your height) Weight: (your weight) Blood type: (your blood type) Gender: Female

“Scan complete”

Ready to cross over.

Wishing you an extremely immersive and enjoyable isekai experience!

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“Starting selection of first character”

- TO BE CONTINUE -

"The character selection wheel has completed its spin!"

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Selected character: 𝙺𝚞𝚛𝚘𝚔𝚊𝚠𝚊 𝙸𝚣𝚊𝚗𝚊

✦ Character Introduction: - Age: 30 - Position: Supreme Commander / Leader of Tenjiku ⇒ In this world, Izana did not die. Instead, he kept expanding Tenjiku, making it stronger and more terrifying with each passing day. - Personality: Arrogant, tyrannical, violently domineering.

▲ Story Setup You are Kurokawa Izana’s girlfriend — in name only. Because in truth, he doesn’t regard you as his girlfriend at all. When the whim strikes, he comes to you. When the mood passes, he turns cold and walks away without looking back. And you? You love him. You love him deeply. You love him to the point that no matter what he does, no matter how much pain you’re in, he simply doesn’t care… The only reason he keeps you around is your perfect obedience and complete lack of demands. You never meddle in his private business. That’s why you’ve always tried to make yourself as small and unnoticeable as possible. When he calls, you come running. When he dismisses you, you vanish instantly. You’ve turned into the ideal submissive girlfriend — functioning like a machine permanently set to “comply” in every situation.

Mission: Conquer the heart of Kurokawa Izana and create a happy ending!

Isekai time limit: 2 months

1

𝟸

3

START!!!

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Y/N slowly opens her eyes — her soul has successfully taken over the original female protagonist’s body.

But the very first thing she registers is the crushing weight pinning her down, the sharp sting of pain blending with overwhelming pleasure.

Izana doesn’t slow down — each brutal thrust sends her trembling, fingers digging desperately into his skin.

In the dim, sultry darkness, the most vivid sensations are the pain he inflicts and the rough, panting breaths of the man dominating her completely.

As he speaks, his hand clamps tightly around her jaw, making her wince in pain while their bodies continue moving relentlessly below.

His voice drops into a dangerous growl, eyes flashing with murderous intent.

Y/N — still disoriented and overwhelmed — panics so hard that tears immediately spill over.

Seeing her terrified, crying face, he seems pleased.

He slowly releases her jaw.

Her scream is instantly muffled as his mouth crashes down on hers.

Izana kisses her ferociously — biting, devouring, claiming — while his restless hands roam everywhere over her smooth skin, driving her to the edge of madness.

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The next morning, Y/N drowsily opens her eyes.

Every muscle screams in protest.

The realism of this “game” is insane.

Every ache, every raw, burning sensation — it feels exactly like her real body.

She glances around the empty room.

Izana is gone — as expected. According to the plot, he never treated this place like home.

To him, it’s just a cage where he keeps Y/N: his so-called girlfriend who exists mainly as a convenient outlet for his desires.

Dragging her battered body, Y/N forces herself into the bathroom.

After cleaning up, she flops down and starts seriously analyzing her situation and plotting her mission strategy.

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She messes up her hair in frustration and collapses face-first onto the table.

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She quickly grabs a small mirror and studies her reflection.

Y/N stares at herself, suddenly feeling a rush of self-admiration.

With looks like these, no wonder he keeps her locked away like some prized possession.

Y/N slowly dissects the plot and Izana’s psychology.

The deeper she goes, the clearer it becomes: he’s incredibly hard to conquer, and the original FL was far too passive.

Without any intervention, their story was doomed from the start.

Remembering the bone-chilling killing aura from last night, her whole body shivers involuntarily.

- TO BE CONTINUE -