Prologue: A Clock Without Hands
Kaito Fujima wakes in old Tokyo, his phone blinking ‘Tuesday,’ but the calendar says 1999. It’s cold. Streetlights hum blue.
The Setup: Why Did He Come Here?
Kaito’s a quiet high schooler, fond of old tech and quiet corners. He always wondered about the years his late father wouldn’t discuss. Now he’s slipped back in time and can’t control it – a broken watch is his only clue home.
He rushes by the fishing park near his old block. When he bumps into Erina, a girl with bright yellow knit cap, she’s crying. “Who are you? You look lost.”
“I am,” he says. “And I can’t find my way back.”
The Cast Grows: Erina’s Secret
Erina guards an old camcorder but won’t say what’s taped. She writes strange math in her blue notebook. Kaito befriends her, hoping for answers. Turns out, she’s noticed other drifters—a pale boy in foggy lens glasses, a woman with a gold pocket watch. “Something’s happening with time here,” she whispers. “We’re not the only ones lost.”
A Mistake Rips the Present
Kaito and Erina trail the pocket watch woman. They see her slip between alleys and vanish. No footsteps. No sound. What just happened here?
All through the city, oddities build up. Trams from older schedules zoom past. Friends from middle school cross the street and disappear. Do you think Kaito should try reaching out to his own father—just as a child—including in this time?
Night falls, shoving Kaito and Erina into a rooftop noodle shop. Neon pinks cut the dark as Erina shows him: rewinding her camcorder can reset pockets of the city. She whispers, “If you pause, doesn’t time stand still? I’m scared to try.”
“Let’s just take a breath,” Kaito says. “We walk forward. One minute at a time. But we have to be quick.”
New Friends or Future Foes?
They find the pale boy—Junya. He’s clearly not local. Junya saw a carnival lost in mist outside the city and tried to step in. A clock struck thirteen. “After that, I woke up here. There’s a pattern, but I almost wish I could forget it. Don’t you?”
Kaito wants to help everyone go home. Erina’s trust wavers. Junya’s terrified his future self is watching, unseen. Weirdly, last night’s ramen shop doesn’t exist today.
The Research: Clock Hands and Loops
Kaito relives September more than once. His pocket watch stops in rooms as if time closes in. Erina marks her notes with symbols from dreams. Each morning starts the same way—stairs climb slow, people lose their memories, tiny details change. Should Kaito risk using the pocket watch, even if he can’t control how many days – or years – he’ll jump?
At a ruined corner shop, an old woman tells them, “Time never forgives, but sometimes it hesitates.”
Flash Shift: Truth From the Past
With only seconds to decide, Kaito tests Erina’s camcorder. He hits rewind, aiming to zero in on the evening his family split. A wild light surges. Erina yells, “You’re going to lose yourself in the loops if you keep this up!”
Suddenly, Kaito sees flashes—himself as a child, his mother’s tears, his own laugh mixing with another echo. 
He drops the camera. The air feels thin. The watch glows blue and spins backward on his wrist. Will this rush break the world, or is it the path home?
Cliffhanger: End of the Thread
In that stopped minute, Kaito stands between two worlds. Erina lines up beside him. Their memories shimmer, tugged one way, snapped back another. Footsteps sound. Behind them, a grown man stands, shadow over Kaito’s own face—a father who remembers nothing. But now their voices overlap. “Why are you here?” the man asks quietly.
The clock freezes.
Standing here, would you take the next step? Or look back forever?
