The rain fell differently in the outskirts. Not cleansing, but gray persistent and tired, turning the slum streets into channels of mud and refuse.
In a cramped, leaking shelter that smelled of rust and mildew, Megumi Fushiguro sat on a broken crate, methodically cleaning his nails with a rusted knife. At fourteen, he had already perfected the art of occupying space without being seen, his dark eyes fixed on the corrugated metal wall with an intensity that made him seem elsewhere.
He was elsewhere.
Across the small room, Sunless—Sunny was counting their meager savings, his fingers quick and desperate. At sixteen, he was still scrawny, still pale, still moving with the jittery energy of someone who had never known safety. But he was alive, and he kept Megumi alive, which was more than anyone else in this forgotten corner of the city had managed.
"Stop staring at the wall," Sunny said without looking up. "You're creeping me out."
Megumi didn't blink. "I'm thinking."
"That's worse." Sunny finally looked up, a crooked smile tugging at his lips. It didn't reach the dark circles under his eyes. "If you're plotting to murder someone, make it the landlord. He actually deserves it."
"I don't plot murders," Megumi said quietly. "Just observe weak points."
He was gloomy by nature, antisocial by necessity. In his previous life, he had learned that connections were liabilities, that emotions were weaknesses to be exploited by curses. In this one, he maintained distance with the same rigid discipline... except with Sunny.
With Sunny, the distance kept collapsing.
"Observing weak points," Sunny muttered, going back to counting coins. "That's my brother. Romantic."
Megumi set down the knife. "You missed three coins. Under the floorboard."
Sunny blinked, then reached under the loose plank. His fingers found the exact coins Megumi had referenced. "When did you..
never mind. I don't want to know."
"Yesterday. While you were sleeping."
"You should sleep too."
"I don't sleep."
Not a lie. Megumi slept rarely, and when he did, he died.
---
Flashback: Shinjuku
The sky above Shinjuku had already collapsed into something unrecognizable.
Black fractures spread across it like broken glass, cursed energy distorting light itself. Buildings leaned at impossible angles, their shadows stretching toward the epicenter of destruction, where two figures stood amidst ruin.
Ryomen Sukuna in Megumi Fushiguro's body.
Yuji could barely stand. His hands trembled, nails cracked and bleeding. Every breath scraped his lungs raw. Across from him, Sukuna smiled wide, cruel, untouched by exhaustion.
"You're slowing down," Sukuna said lightly, flexing Megumi's fingers as if testing a new toy. "This body… it's better than I expected."
Yuji's teeth clenched. "Give him back."
Sukuna laughed.
But then...
Something shifted.
It was subtle at first. A flicker. The way Sukuna's shadow moved half a second too late.
Then the ground beneath him rippled.
A voice echoed, not from outside, but from within.
"…Enough."
Sukuna's smile faltered.
For the first time since taking control, his expression twisted, not in amusement, but irritation.
"You again?" he muttered.
The air thickened. Shadows pooled unnaturally around Sukuna's feet, spreading outward like ink in water. They didn't obey him.
They resisted.
Megumi's domain materialized. Incomplete, broken but still there.
And inside it Megumi Fushiguro stood.
Not whole. Not alive in the way he used to be. His body was torn, submerged in darkness, ribs visible through shredded flesh. But his eyes were clear.
"You're not… using me anymore," Megumi said.
Sukuna scoffed, though a vein pulsed at his temple. "Don't misunderstand. You're nothing more than a vessel."
"Then why," Megumi replied quietly, "can't you move?"
For a fraction of a second Sukuna's arm refused to respond.
That was all Yuji needed.
He moved.
Black Flash erupted, space itself cracking under the impact as his fist slammed into Sukuna's chest. The force drove him back, skidding, tearing through concrete and steel.
But Sukuna didn't fall.
Instead, his grin returned, sharper, more vicious. "So that's your plan?" he said. "A dying soul trying to drag me down with him?"
Inside the shadowed domain, Megumi exhaled slowly.
"Yes."
The darkness surged. Not outward, but inward.
It swallowed Sukuna from within. Sukuna's expression changed.
"You think you can kill me like this?" he snarled. "You'll die too."
Megumi didn't hesitate.
"I know."
Outside, Yuji froze.
"…Megumi?"
The shadows erupted violently, forming distorted shapes—shikigami, incomplete, broken, yet overwhelming in number.
Sacrificed.
Megumi's voice echoed through the battlefield now, no longer confined.
"Yuji… don't stop."
Sukuna's cursed energy flared, tearing through the encroaching darkness, but it was slower now. Heavy. Restrained.
Megumi was locking him in place.
Burning himself out to do it.
"You idiot," Sukuna spat. "You're throwing your life away for nothing."
Megumi's answer was simple.
"I was already gone."
The shadows tightened.
Yuji moved again.
This time, there was no hesitation.
He crossed the distance in a heartbeat, cursed energy condensing around his fist one last time.
"Thank you," he said quietly.
Then—
Impact.
Black Flash.
The world went silent. For a moment, everything stopped.
Then Sukuna's body cracked.
Not from the outside, but from within.
Shadows burst outward, tearing through flesh, unraveling the curse that had defined an era. Sukuna's grin froze in place, then shattered as his form collapsed into fragments of dissipating energy.
And at the center of it..
Was a barely standing Megumi.
His body was no longer whole. Parts of him faded into shadow, edges dissolving like smoke.
Yuji staggered forward, catching him before he fell.
"…You're late," Megumi said faintly.
Yuji choked out a laugh that didn't quite form. "Yeah… sorry."
Megumi's gaze drifted upward, toward the fractured sky.
"…It's over, right?"
Yuji nodded, even though his vision blurred. "Yeah. It's over."
Megumi exhaled, tension leaving his body.
"Good."
His hand twitched slightly, as if trying to form a sign, but it stopped halfway.
"Take care of them," he murmured. "And… don't do anything stupid."
Yuji let out a broken breath. "You're the one who just.."
Megumi's lips curved, just barely.
Then—
He was gone too.
---
Present
"You're doing it again," Sunny said, his voice suddenly soft. "Going somewhere else."
Megumi returned to the present. The knife was back in his hand, though he didn't remember picking it up.
"Memories," Megumi said simply.
Sunny studied him for a long moment. At sixteen, he had grown into his ferocity, all sharp edges and defensive postures. But when he looked at Megumi, something in his face went achingly gentle in a way that Megumi still didn't know how to handle.
"Bad ones?"
"The worst," Megumi admitted.
Sunny nodded. He stood up, crossed the small space between them, and did something he only did when he thought Megumi wouldn't push him away—he ruffled Megumi's hair, then left his hand there, heavy and warm.
"Well. Don't let them eat you yet. I still need you to glare at people who get too close to our territory. Saves me from having to actually fight them."
Megumi looked up at him. "Your hand is shaking."
Sunny withdrew it. "Low blood sugar. Or fear. Probably both."
"You don't get afraid."
"I get afraid all the time, Megumi." Sunny turned away, busying himself with the single hot plate they owned. "I'm afraid the roof will leak on your head. I'm afraid the water will be poisoned. I'm afraid you'll finally realize you could survive better without me dragging you down, and you'll leave."
Megumi was quiet for a moment. Then: "I won't."
"You could. You're... you're different. You always have been. Like you're already an adult in there." Sunny tapped his own temple. "You don't need me."
"Need is irrelevant," Megumi said, his voice flat but not cold. "You're my brother."
Sunny's shoulders tensed. He didn't turn around, but Megumi saw his jaw work, processing the words. Sunny had been five when their mom died. What mattered was that Rain had been adopted by a wealthy family who only wanted one child, and Sunny had begged them to take Megumi too.
He had explained it once, years ago, when Megumi was old enough to understand. Their mother had been a woman with a poetic soul. Rain was born during a storm, named for the sky's weeping. Megumi was born minutes later, silent, not crying, never fussing.
"She called you her blessing," Sunny had said, staring at the ceiling of their shelter. "Said you were too good for this world. But Blessing was too girly a name, so she gave you one that meant it instead. Megumi."
Sunny had kept him fed. Kept him clothed. Kept him safe, even when it meant coming home with cracked ribs and stolen bruises.
Now, at sixteen, Sunny was still carrying that weight.
"Your brother," Sunny repeated now, almost to himself. "Right. Well. Your brother needs to tell you something."
Megumi set down the knife. "What?"
Sunny turned. His face was carefully blank, the way he looked when he was about to fight someone stronger than him. Resigned. Defiant.
"The Nightmare Spell," Sunny said. "I've been infected. A week now."
The air left the room.
Megumi stood up slowly. At fourteen, he was nearly as tall as Sunny, his growth spurt having hit early, leaving him lanky and sharp-edged. "The symptoms."
"The sleepiness. The dreams. The... the way shadows move when I'm not looking." Sunny tried to smile. It looked wrong. "I'm going to the police station tomorrow. To surrender."
"No."
"Megumi—"
"No." Megumi's voice was low, controlled, but his hands were fists at his sides. "You don't get to do this. You don't get to leave."
"I'm not leaving. I'm—"
"You're leaving." Megumi stepped forward. In his previous life, he had commanded shikigami, faced special grades, died for his friends. In this life, he had only ever had Sunny. "You go to sleep, you might not wake up. You know the statistics. Outskirts kids don't survive First Nightmares. The Spell gives us garbage Aspects, garbage situations, garbage odds."
"Then I'll be the exception," Sunny said, but his voice wavered.
"You will be," Megumi said. There was no room for doubt in his voice. It was an order. A prayer. A fact he was enforcing upon reality through sheer will. "Because you promised."
"I promised a lot of things." Sunny reached out, gripping Megumi's shoulders. His fingers dug in hard enough to bruise. "I promised I'd keep you fed. I promised I'd keep you safe. I promised you wouldn't end up dead in a ditch. I don't know if I can promise this."
"You can." Megumi met his eyes. Green to dark. Shadow to shadow. "You come back. No matter what. You survive, you wake up, and you come back. I don't care if you're broken. I don't care if you're changed. You come back."
Sunny stared at him. Sixteen years old and already so tired. "Why?"
"Because," Megumi said, and his voice dropped to something barely audible, something that cost him more than any domain expansion ever had, "you're all I have."
The silence stretched between them, fragile and sharp.
Then Sunny pulled him into a hug. Megumi stiffened, he hated being touched, hated vulnerability, hated the exposure of being held, but he didn't pull away. He never did. Not with Sunny.
"You're all I have too, you gloomy bastard," Sunny whispered against his hair. "So fine. I'll come back. I'll crawl out of hell itself if I have to."
"Good."
"I'll kick the Spell's ass. Get a divine Aspect. Come back and buy you a house with a roof that doesn't leak."
"Don't be dramatic."
"I'm always dramatic." Sunny pulled back, his hands still on Megumi's shoulders. His eyes were wet, but he was smiling. "Wait for me. Don't get recruited by some fancy Awakened clan while I'm gone. Don't make any friends."
"No danger of that," Megumi said dryly.
"And try to smile once in a while. Just so people don't think you're plotting to kill them."
"I am plotting to kill them. If they touch your things while you're gone."
Sunny laughed. It sounded broken. "That's my Megumi. My blessing."
He stepped back, grabbing the cheap coat he wore to protect against the perpetual rain. At the door, he paused.
"I'll see you soon."
Megumi watched him go, fourteen years old and carrying the weight of two lifetimes, two deaths, and one impossible hope.
"Come back," he said to the empty room.
The shadows pooled at his feet, listening.
Waiting.