Chapter Text
The morning they brought you to him, the sky wept crimson.
You knelt in the courtyard of his shrine, hands bound behind your back with sacred rope that chafed your wrists raw. The village elders had dressed you in their finest white kimono—the kind reserved for festivals and sacrifices. The silk felt foreign against your skin, too smooth, too precious for someone like you.
"Rise," came the voice that made mountains tremble.
Your legs shook as you stood, keeping your eyes fixed on the stone beneath your feet. You'd heard the stories, of course. Everyone had. Ryomen Sukuna, the King of Curses, who could level cities with a gesture and whose very presence turned the air thick with malice. But nothing had prepared you for the weight of his attention, like being crushed under the gaze of something ancient and terrible.
"Look at me."
The command wasn't loud, but it might as well have been thunder. Your chin lifted against your will, and you found yourself staring into four red eyes that seemed to burn with their own inner fire. He was massive—easily twice your height—with pink hair and black markings covering his skin like war paint. Four arms, just like the stories said. A mouth stretched across his stomach, lined with teeth that could tear you apart without effort.
He was terrifying. He was magnificent. And he was looking at you like you were the most interesting thing he'd seen in years.
"What's your name, little omega?"
The question caught you off guard. You'd expected to be devoured immediately, not... interviewed. "Y/N," you whispered, then cleared your throat and said it again, stronger.
"Y/N." He rolled your name around in his mouth like he was tasting it. "Do you know why you're here?"
"To appease your hunger, my lord." The words came out steadier than you felt.
Sukuna laughed, a sound like distant thunder. "Appease my hunger? Is that what those fools told you?" He stepped closer, and you caught his scent—smoke and copper and something wild that made your omega instincts flutter in confusion. "I could eat you, certainly. One bite, maybe two. You'd barely be an appetizer."
Your heart hammered against your ribs, but you didn't look away. Something in his expression had shifted, become almost... amused.
"But you smell far too interesting to waste on a simple meal." One of his hands reached out, fingers ghosting over your cheek without quite touching. "Sweet little omega. When was your last heat?"
Heat flooded your face. "Three months ago, my lord."
"Mmm. And the next?"
"Soon," you admitted, though you'd been hoping to hide that fact. The pre-heat symptoms had started yesterday—the restlessness, the urge to gather soft things, the way every alpha scent made you want to bare your throat or run.
"How delightful." His grin showed too many teeth. "You'll stay."
It wasn't a request.
The first week passed in a strange sort of limbo. Sukuna kept you close but didn't touch you, seeming content to watch you navigate his shrine like you were an amusing pet. He'd lounged on his throne while you knelt nearby, occasionally asking you questions about your village or your family, though you suspected he cared little for the answers.
"You're not what I expected," you told him one evening as you served his dinner. The words slipped out before you could stop them.
"Oh?" He didn't look up from the meat he was tearing apart with his bare hands. "And what did you expect?"
"More... eating of people, I suppose."
"Disappointed?" There was something sharp in his voice, dangerous.
"No, my lord. Grateful."
"Liar." But he sounded pleased rather than angry. "You expected a mindless beast. Something that would devour you quickly and put you out of your misery."
You said nothing, but your silence was answer enough.
"I am ancient, little omega. I have conquered nations and burned cities to ash. I have eaten kings and made their queens weep." He finally looked at you, those red eyes gleaming. "But a frightened omega thrown at my feet like scraps? There's no sport in that. No entertainment."
"Then why—"
"Because you interest me." He leaned forward, and his scent grew stronger. "You're afraid, yes, but you haven't groveled. Haven't begged. Haven't tried to run." One clawed finger traced the air near your throat. "Most humans bore me within minutes. You... you've kept my attention for seven days. That's quite an accomplishment."
That night, he had servants bring you proper clothing—not the sacrificial white, but a soft yukata in colors that complemented your skin tone. The fabric was finer than anything you'd ever owned, and it fit perfectly despite him never asking your measurements.
"Better," he declared when you appeared before him the next morning. "Though something's still missing."
He rose from his throne with fluid grace, all four arms moving in perfect coordination as he approached you. This close, his presence was overwhelming—heat and power radiating from his skin, the sound of your heartbeat loud in your ears.
"Hold still," he murmured, and you felt the sharp press of one claw against your throat.
You didn't flinch, though every instinct screamed at you to run. The claw traced a delicate pattern just above your collarbone—swirling lines that felt like they were burning themselves into your skin. Not painful, exactly, but intense, like ice and fire at once.
"There." He stepped back to admire his work, satisfaction clear in his expression. "Much better."
You touched the spot gingerly and felt raised skin, warm to the touch. When you looked in the polished bronze mirror later, you saw what he'd done—an intricate mark in black ink that seemed to shimmer when it caught the light. Beautiful and unmistakably his.
"It's a claiming mark," he explained casually when you returned. "Nothing permanent, mind you. But it will let every creature within a hundred miles know exactly who you belong to."
The words should have terrified you. Instead, they sent a strange thrill down your spine that you tried very hard to ignore.
Your pre-heat symptoms grew stronger over the next few days. The restlessness became almost unbearable, and you found yourself constantly rearranging things in the small room Sukuna had given you. The servants brought you meals, but you barely touched them, too anxious to eat.
"You're nesting," Sukuna observed on the fourth day, appearing in your doorway without warning.
You looked up from where you were folding and refolding a silk blanket, embarrassment heating your cheeks. "I'm sorry, my lord. I know it's... unseemly."
"Unseemly?" He stepped into the room, ducking slightly to fit through the doorway. "It's natural. Though your nest is..." He gestured at the meager collection of blankets and pillows. "Pathetic."
The insult stung, and you bristled despite yourself. "I'm working with what I have."
"Mmm." He studied the small space critically. "This won't do at all. How am I supposed to fit in here?"
Your hands stilled on the blanket. "My lord?"
"When your heat comes, little omega, did you think I'd leave you to suffer alone?" His grin was all teeth and promise.
Heat pooled low in your belly at his words, and you ducked your head to hide your reaction. "I... I didn't presume..."
"No, you wouldn't." He sounded almost fond. "Sweet little thing. Always so careful, so polite. Even when you're desperate to build a proper nest, you don't ask for what you need."
"I don't want to be a burden—"
"Burden?" The word came out sharp enough to cut. "You think providing for my omega is a burden?"
His omega. The possessive pronoun sent shivers through you.
"You will have everything you need," he continued, his voice gentler now. "Furs, silks, whatever catches your fancy."
"Thank you, my lord."
Over the next two days, servants appeared with armloads of the most luxurious materials you'd ever seen. Silk blankets in jewel tones, furs so soft they felt like clouds, pillows stuffed with down that smelled of cherry blossoms. You arranged and rearranged everything obsessively, driven by instincts you barely understood.
Sukuna would appear periodically to check your progress, offering suggestions that were really commands. "More red there. The black fur should go in the center. Make sure there's room for me to stretch out properly."
You worked tirelessly, desperate to create something worthy of him. The nest grew larger and more elaborate with each passing hour, spreading across the floor of what had once been a modest room. By the time you were satisfied, it was easily large enough for someone of Sukuna's considerable size, layered with textures and colors that pleased both eye and touch.
"Better," he declared when you presented the finished product, though you caught something warmer in his expression. "Much better."
You knelt in the center of your creation, suddenly shy. "Do you... do you think it's adequate?"
"Adequate?" He moved closer, his massive frame looming over you. "Little omega, this is a nest fit for a king. Which is exactly what it should be, considering who you built it for."
Pride bloomed in your chest at his approval, and you felt some of the restless anxiety that had been plaguing you finally begin to settle. Your nest was perfect. Your alpha—
The thought stopped you cold. Your alpha? When did you start thinking of him that way?
"Something wrong?" Sukuna's voice held a note of amusement, as if he could read your thoughts.
"No, my lord. Nothing's wrong."
"Good." He reached out and touched your cheek, the gesture surprisingly gentle for someone with such deadly hands. "Rest now, little omega. You'll need your strength for what's coming."
As if summoned by his words, another wave of pre-heat symptoms washed over you—stronger this time, more urgent. You curled up in your nest, surrounded by his scent where it had absorbed into the fabrics, and tried not to think about what tomorrow might bring.