Chapter 1: The Rival in the Bedroom
The lavender-scented air in the hallway was always too thick, too sweet. Sukuna hated it. It was Megumi’s smell, and it clung to everything, a persistent reminder of her presence just beyond her bedroom door. Tonight, it was undercut by something else. Something warmer, muskier. Synthetic.
Her door was ajar.
A sliver of pink wall and the edge of her messy bed were visible. The silence from inside wasn’t silent at all; it was a low, rhythmic rustle of sheets, punctuated by soft, hitched breaths. His feet were rooted to the floor. He knew he should announce himself, cough, bang the door open like he always did. His hand, already lifted to shove it, fell back to his side.
He shifted, just an inch, and looked.
Megumi was on her bed, kneeling, her back to the door. Her small frame was arched, a delicate curve of pale skin and dark, tangled hair spilled over her shoulders. She was moving, a slow, desperate rocking motion. A choked whimper broke from her lips.
Sukuna’s blood turned to fire and ice in the same instant.
His eyes dragged downward, past the trembling line of her spine, and he saw it. The plush snow tiger, Mr. Satoru, was propped against her pillows. Its usual glassy, benign gaze was obscenely altered. A thick, flesh-toned shape emerged from between its soft plush legs, glistening under the lamplight. Megumi was sheathed on it, her body taking its length with each shallow rock forward.
“Mr. Satoru,” she breathed out, the name a prayer. “Yes… right there. You love me, don’t you? You always know.”
Sukuna’s vision tunneled. The crimson of his eyes seemed to bleed into everything he saw. He heard the wet sound of her body, saw the sweat dampening the roots of her hair. A possessive, volcanic rage erupted in his chest, so potent it was dizzying. It was intertwined with a sharp, brutal lance of arousal that stole the breath from his lungs.
He must have made a sound. A low scrape of his boot against the floorboard.
Her rocking stopped. Her head turned slowly, just enough for her wide, green eye to catch him in the doorway. For a heartbeat, there was only the pounding of his own pulse in his ears. She didn’t scream. She didn’t scramble to cover herself.
A slow, petulant smile touched her swollen lips.
She leaned back, pulling herself off the toy with a soft, deliberate sigh, and gathered the giant plush into her arms. She hugged it tightly, turning to face him fully, her nakedness a defiant shield. The toy’s blank face rested against her cheek.
“Kuna-nii,” she said, her voice a soft, bratty taunt. “You’re home early. Didn’t have anyone else to fuck tonight?”
“What,” Sukuna growled, the word scraping raw from his throat, “is that.”
“Mr. Satoru,” she said, as if explaining something simple to a child. She nuzzled the plush. “He takes care of me. He listens. He doesn’t come home smelling like cheap perfume and other women.”
He took a step into the room. The door creaked. The lavender and sex smell was overwhelming. “Take that… thing… off of it. Now.”
“No.” She hugged it tighter, her chin lifting. Her innocence was a mask, cracked and revealing something darkly knowing underneath. “He gives me more than you ever do. He makes me feel full. He doesn’t just rush in and use me and leave. He’s gentle. He loves me.”
Every word was a scalpel, twisting in the gut of his obsession. He loved her. She was his princess. His. The thought of that fake, plastic substitute touching her, being inside her, being the name on her lips…
“It’s a toy,” he snarled, advancing another step. The room felt cramped, a pink-walled cage. “It’s nothing. It can’t love you.”
“And you can?” she shot back, her eyes flashing. “You love your random girls. You love your freedom. You love throwing money at me and thinking that’s care. Mr. Satoru is here. He’s always here. He doesn’t make me feel alone.”
She was crying now, fat tears rolling down her cheeks, but her expression was pure spite. She was weaponizing her vulnerability, and he was completely disarmed by it. The sight of her tears, her naked body cradling that grotesque hybrid of childhood comfort and crude sex, shattered the last of his control.
He closed the distance in two strides. His large hand shot out, not for her, but for the plush tiger. He grabbed it by the head, his fingers sinking into the synthetic fur.
Megumi shrieked, a raw sound of protest. “Let go! Don’t you touch him!”
“Him?” Sukuna wrenched the toy from her grasp. He held it up, the dildo dangling absurdly. Rage and a dark, all-consuming need warred inside him. “This is what you want? This is what makes you cry my name?”
“I didn’t cry your name!” she screamed, kneeling on the bed, her small fists clenched. “It’s his! It’s always been his! Because he’s better than you!”
He stared at her, at the furious, tear-streaked face of his little sister. His princess. The only thing in the world that was truly his. The obsession settled in his chest, cold and final. The arousal was a constant, painful throb.
He dropped the plush tiger. It landed on the floor with a soft, pathetic thud.
“No more,” he said, his voice dangerously low. He loomed over the bed, casting her in his shadow. “You don’t need a toy, Gumi.”
She stared up at him, her defiance slowly mixing with a flicker of something else—fear, recognition. A understanding of the line they were both now standing over.
He reached out, his thumb rough as it wiped a tear from her cheek. “If you want to be full,” he whispered, the promise laced with a threat that made her breath hitch, “I’ll fill you. If you want to be loved, I’ll love you. So much it burns. I’ll be the only one.”
His thumb traced down to her lip. “And you’ll never say that thing’s name again.”
Outside, a car passed, its headlights sweeping across the ceiling and then vanishing. In the sudden return to dim lamplight, they were frozen. Her, bare and trembling. Him, a monument of pledged devotion, his every word rewriting the rules of their world.
The chapter ended there, in the cloying scent of the room, with a shattered lock on the door and a plush tiger lying forgotten on the floor. The only sound was the shaky rhythm of Megumi’s breathing, and the heavy, promise-laden silence of the man who now knew exactly what he had to possess.