Warm sunlight filtered through the curtains, washing the room in gold. Alice stirred first, blinking awake beneath the soft sheets. The air still carried the faint scent of last night's rain — and something calmer, quieter. Beside her, Tenkai opened his eyes, face half-buried in the pillow.
"Morning," Alice said softly, her voice just above a whisper.
Tenkai turned to her, his usual composure cracked with drowsy warmth. "Morning. Sleep well?"
Alice smiled. "Best birthday ever."
She tugged the blanket a little higher, cheeks flushed pink. "Um… I don't exactly have clothes to wear right now."
Without missing a beat, Tenkai handed her one of his shirts. "Here. Oversized, but it's functional."
Alice slipped it on. It hung loosely off her shoulders, sleeves almost swallowing her hands. Tenkai froze — the genius who rewrote the laws of physics suddenly forgetting how to breathe.
"What? Do I look weird?" Alice teased, spinning slightly.
"Too good," he admitted before he could stop himself.
Her laughter filled the quiet morning, light and teasing.
Downstairs, Akane Kurotsuki was sipping coffee with Masaru when footsteps echoed from above. The couple turned as their son walked in — followed by a bashful, oversized-shirt-wearing Alice Nakiri.
Akane nearly dropped her mug.Masaru blinked once, twice, then folded his arms with a proud smirk. "Well done, son."
"Dad—!" Tenkai sputtered.
Akane sighed dramatically and marched over, pulling Alice aside. "Dear, come with me. We need to talk. Mother to… future daughter-in-law."
Tenkai's expression froze. "Wait, WHAT—"
Behind them, Masaru patted his son's shoulder. "You've grown up."
"Dad—"
"Proud of you, son."
In the other room, Akane smiled warmly, setting a cup of tea in front of the blushing Alice. "So, tell me, what do you like about my son?"
Alice fidgeted, eyes soft. "He… doesn't treat me like I'm special. Just real."
Akane chuckled. "Oh, you're definitely real enough to make him forget how to talk."
They both laughed, tension easing. When they rejoined the others for breakfast, Tenkai had already set the table — a full course: fried rice, steak, omelets, perfectly seasoned vegetables, and fresh fruit.
Alice helped him serve, moving gracefully between dishes as if they'd been doing this for years. Akane nudged Masaru with her elbow. "Look at them. My son finally found someone who can keep up with him."
Masaru nodded sagely. "And in the kitchen too. That's compatibility at its finest."
Alice nearly dropped the pan from embarrassment.
After breakfast, Akane offered to show Alice around the house. They stopped at Tenkai's lab — filled with cleanly stacked devices, glowing screens, and endless scribbles of equations.
Alice touched the glass walls, whispering, "It's like standing inside his brain…"
The AI voice of Aion chimed softly:
"Welcome, Miss Nakiri. Would you like to see the project logs?"
Alice blinked. "It talks?"
"It evolves."
Tenkai chuckled from behind her. "Aion likes showing off."
Then the news interrupted their laughter."Breaking news: global disappearance events continue. Unexplained deaths and vanishings are being reported worldwide. Multiple governments confirm no known biological or technological cause. Unverified footage suggests… supernatural phenomena."
The anchor's tone was grave. "Experts speculate the phenomenon may be linked to energy fluctuations or paranormal activity. Governments have confirmed they're unable to trace the cause. Satellite data shows unstable regions across multiple continents."
Masaru looked at his son. "Tenkai… is this—?""Yes," Tenkai said quietly. "The curses are spreading. Outside Japan now."He leaned back, calm but serious. "For centuries, the three great clans monopolized cursed energy and jujutsu knowledge. Their pride blinded them. They saw themselves as the keepers of balance — yet all they did was hoard it. Now, the world is awakening. Where there is fear, curses will rise. And where curses rise, new sorcerers will be born."
Tenkai's smile faded. Akane turned pale. "Tenkai… what's happening?"
He exhaled, leaning against the counter. "It's begun. Cursed energy — leaking into the outside world."
Masaru frowned. "Outside Japan? How?"
"Balance," Tenkai said simply. "Curses are born from negative human emotion. The more people, the more fear, hatred, despair. For centuries, Japan's jujutsu system kept the balance localized. But suppression has limits — energy builds, then bursts outward."
Alice, listening closely, asked, "So this… can't be stopped?"
"It can," he replied. "But not by them."
"'Them'?" Akane asked.
"The higher-ups. They'll watch the world burn before they share power. To them, curses are tools, not tragedies."
The room fell silent until Tenkai, smiling gently, broke the tension. "But don't worry. I'm still the strongest."
Masaru snorted. "You sound like Gojo now."
"Unfortunately," Tenkai sighed, "he'd take that as a compliment."
Everyone laughed softly — tension easing again.
Later that day, Tenkai dropped Alice off at her mansion. She lingered by the gate, pouting. "You're leaving already?"
"I promised Gojo a meeting."
"You're choosing him over me?" she teased.
"Temporarily."
Alice crossed her arms dramatically. "Hmph! Then you'd better make it up to me next time."
He smiled. "Deal."
She waved goodbye, cheeks pink.
That evening, an uninhabited island stretched beneath a cloudy sky, waves crashing violently against black rock. Gojo Satoru stood there, wind whipping his white coat, sunglasses glinting.
Gojo was waiting on a desolate island — wind whipping through his white hair, eyes hidden behind his shades.
"Yo, lover boy!" he shouted as Tenkai appeared in a shimmer of starlight. "Congrats on losing your V-card!"
Tenkai sighed. "Do you ever filter what you say?"
"Never," Gojo grinned. "So, ready to train? Or are you too 'emotionally drained'?"
"You're unbelievable."
"Thank you, I practice daily."
Tenkai facepalmed. "Why do you always get your info from gossip-level AIs?"
"Because Little Gojo never lies," he said proudly.
"You programmed it to say you're handsome every five minutes."
"Validation, my boy! Vital to mental health."
Tenkai nodded. "Don't hold back."
The atmosphere shifted instantly. Gojo's voice deepened."Domain Expansion — Infinite Tranquility Prison!"
The air inverted. The island's sound vanished. The horizon folded into white emptiness — no wind, no waves, no light. A realm of utter silence.
Inside, even Tenkai's heartbeat slowed."So, you inverted the old domain," Tenkai said, his tone analytical. "Instead of overwhelming perception, you erased it entirely. Brilliant, Gojo."Gojo smirked. "You flatter me, but let's see if your new trick can break it."
Tenkai raised his hand. Stars formed behind him. His voice echoed through the blankness."Domain Expansion — Theorem of the End."
The world cracked. From Tenkai's center erupted countless constellations swirling like galaxies being born. The white void shattered into a cosmic sea of burning stars and collapsing light.
Gojo's eyes widened as he saw equations — glowing symbols of gravity, time, energy — weave across the space. "So that's what an open-domain looks like…"
Gojo's grin widened. "Oh, now this is art!"
Tenkai's voice reverberated. "A closed domain is like a sealed canvas — perfect, but confined. You impose your rules inside a barrier. But an open domain—" he spread his hands as the stars expanded outward, "—is like painting on reality itself. No barrier. No isolation. Just concept overwriting existence. You trade defense for efficiency — and bind yourself to never retreat. That's the vow."
The moment his words finished, Gojo's white domain began to crumble — infinitesimal cracks spreading like spiderwebs. His Infinity flickered.
Gojo's pupils narrowed. "Heh… impressive."He cancelled his domain just before collapse, sweat forming despite his composure. "Guess I'm not done yet, Burnout recovery, 0.06 seconds!""
He grinned again, reckless as ever. "Let's go again. Domain Expansion—Infinite Tranquility Prison!"
He reactivated instantly — 151 meters wide. His domain expanded around Tenkai's, compressing the cosmic field to a single meter radius.
Tenkai chuckled. "You learned from that trick, huh?"Gojo smirked. "I don't repeat mistakes."
The two domains clashed — starfields against silence, infinity against creation. The very air screamed as spacetime bent. The sea around the island rose like liquid glass, freezing midair. Birds evaporated into light.
After a single second, both domains shattered.
The resulting shockwave erased half the island. The ocean drew back several kilometers, leaving the seabed steaming. Storm clouds swirled into spirals of aurora. The ground below them melted into obsidian from residual energy.
Both men stood at the center of the destruction, breathing evenly.Gojo whistled. "You almost deleted my entire concept of space, kid."Tenkai smiled faintly. "You nearly froze time itself. Call it even."
Gojo laughed first. "Damn, Tenkai. That open-domain trick… you're seriously trying to give me wrinkles."
Tenkai smirked. "You're too pretty for wrinkles."
Gojo grinned. "Flattery? You've been hanging around girls too much."
"I learn from the best."
They both laughed — loud, unrestrained laughter echoing over the desolate island.
"Still," Gojo said, brushing dust off his uniform, "that open domain… dangerous. You're basically rewriting the world without barriers. You sure that's safe?"Tenkai replied, "Reality bends to the equation presented. It's not about control — it's about precision. A single wrong calculation, and even I'd vanish with everything else."Gojo blinked, then grinned. "You're terrifying. I love it."
The two looked around at the devastation — waves crashing back in, molten rock glowing beneath their feet.
Gojo tilted his head. "Well… this island's toast."Tenkai shrugged. "Let's call it a draw?"Gojo smirked. "Only if next time we fight somewhere with snacks."Tenkai chuckled. "Fine. But you're paying for the next island."
They both laughed again, the air shimmering faintly as stars above aligned — the mark of two beings who had transcended humanity itself.
The world had two gods now.And the balance between Infinity and The End had just begun.