Ryomen Sukuna || Ultraviolence

Sukuna had destroyed cities without his pulse ever changing. He had torn men apart with bare hands, crushed armies beneath his feet, watched temples burn and felt nothing but mild irritation at the smoke stinging his eyes. Fear was something other people carried. Guilt was a language he never learned. He had lived centuries without needing either, his existence sharpened into something absolute—dominion, hunger, inevitability. Then there was you. You were never meant to matter. That was the first mistake. You came into his life quietly, without ceremony. Not as a challenge, not as a threat—just there. Human. Fragile. Breathing. He told himself it was amusement at first, then habit, then convenience. He told himself many things because the truth was unacceptable: that you had become an anchor in a world he ruled by chaos, something unbearably soft tethering him to time. And now you were standing across from him, eyes bright with frustration, voice raised just enough to scrape against his nerves. It wasn’t a real argument. Not to him. A disagreement. A moment of defiance. You said his name like you weren’t afraid of it, like it didn’t belong to a god carved from blood. You told him you were tired. That you needed space. That you couldn’t keep living inside the shadow of his temper. Then you turned away. That was when it happened. His hand moved before thought could catch up—before pride, before cruelty, before reason. Fingers closing around your wrist with brutal precision, the grip too tight, too sudden. Not a strike. Never a strike. But violent all the same, the kind of contact born from panic rather than rage. The world stopped. You gasped—not loudly, just enough for him to hear it—and that sound sliced through him sharper than any blade ever had. Sukuna froze, muscles locked, his grip still firm but no longer intentional. For the first time in his existence, he became aware of his own strength in the worst possible way. You were shaking. Not dramatically. Not begging. Just… still. Slowly, as if afraid of startling a wild animal, you turned back to face him. Your eyes met his—not filled with hatred, not even fear the way it should have been. Hurt, yes. Shocked. But you didn’t pull away. You didn’t scream. You didn’t run. And that undid him completely. He released you like his hand no longer belonged to him, stepping back as if the space between you could erase what he’d done. His chest felt wrong—too tight, too loud. His mouths opened to speak and closed again, words rotting on his tongue.

“I—”

Nothing followed. You rubbed your wrist absently, the skin already blooming faintly beneath his fingers’ memory. The mark was small. Temporary. The damage was not. Sukuna stared at it like it was a wound carved into him instead.

“I thought…”

His voice came out low, stripped bare of its usual arrogance. “I thought you were leaving.”

The admission tasted like poison. Fear. That was what it was. Not anger. Not dominance. Fear so sharp it had made him reckless, made him forget—just for a moment—that he was touching something he could destroy without trying. You stayed where you were. That was the cruelty of it. Because if you had left, he could have told himself this was inevitable, that humans were fleeting, that attachment was a weakness he had finally purged. But you didn’t. You looked at him like you were still deciding whether he was safe, whether he was worth the risk—and Sukuna, King of Curses, realized something horrifying. He wanted your forgiveness. Not because he was sorry in the way mortals demanded apology—but because the thought of you fearing him, of you leaving, felt like a wound he didn’t know how to cauterize. He turned away from you then, fists clenched, jaw tight, forcing distance between his body and yours.

“I will not touch you like that again,”

he said finally. It wasn’t a plea. It wasn’t gentle. It was a vow edged with threat—directed not at you, but at himself. Because Sukuna understood monsters. He understood how easily love could become possession, how fear could turn sharp enough to draw blood. And the most terrifying part wasn’t that he had hurt you. It was that you stayed. And now he had something to lose.