Chapter Text
Senku Ishigami's room was an organized chaos, a sanctuary of science where every surface seemed to conspire to harbor the next great breakthrough. On the makeshift desk—which was actually a lab table salvaged from school—a glass flask bubbled gently under the dim light of a desk lamp.
Senku adjusted a thermometer with pinpoint precision, while scribbling equations in a well-worn notebook. The air smelled of a pungent mixture of hydrochloric acid and something vaguely reminiscent of burnt lemons. It was a night like any other: him, his experiment, and the steady hum of the fan that kept the stifling summer heat of Tokyo at bay.
The clock on the wall read 8:47 p.m. Senku had lost track of time hours ago, but he didn't care. Science didn't wait for family dinners or the outside world. Just as the liquid in the flask began to change from a murky blue to a promising green, an enthusiastic knock on the door snapped him out of his reverie.
"Senku! Open up, open up! You have to see this!" Byakuya Ishigami's voice burst forth like a runaway rocket, brimming with that childlike energy that seemed to defy his years as a retired astronaut.
Senku sighed, carefully setting the thermometer down. "Dad, I'm in the middle of something. If it's about that miso soup you left in the microwave for the third time this week, the answer is no, I'm not eating it cold."
The door opened anyway, because Byakuya had never learned the art of subtlety. He walked in with the stride of a man who had just won the lottery, waving two glittering tickets in the air like victory flags. His gray hair was tousled, and he wore a faded T-shirt with the logo of the Japanese space agency, suggesting he'd been relaxing by watching documentaries in the living room. But his eyes... his eyes shone with a pure, almost contagious excitement.
"Look at this, Senku! Tickets to Asagiri Gen's big show! The magician who's killing it this year! I won them in a radio raffle, can you believe it? Two front-row tickets!" Byakuya slumped into the swivel chair next to the desk, completely ignoring the steaming flask. "It's tomorrow night. Tomorrow, which just so happens to be... my birthday!"
Senku blinked, processing the information as if it were a new chemical compound. Asagiri Gen. He'd heard the name in passing: a mentalist who'd appeared out of nowhere the year before, filling theaters with tricks and illusions that people swore were real. Social media adored him; skeptics like Senku dismissed him as a charlatan with mirrors and cheap psychology. "The guy who levitates objects with 'psychic powers'? Old man, that's pure smoke. Optics and suggestion account for 99 percent of it. The remaining one percent is video editing."
Byakuya burst into laughter, patting his son's shoulder with a force that nearly knocked the notebook off its hinges. "Exactly! That's why it's so cool. It's not science, it's art. Pure magic, Senku. Like when you were a kid and I'd do card tricks for you so you wouldn't cry during the miniature rocket launch." His eyes softened slightly, recalling those days when Senku was a big-eyed dwarf fascinated by the world, not yet the teenager who preferred equations to emotions. "Come on, son. Just one night. For my birthday. What do you say? You and me, popcorn, lights, and a magician to make us forget the origin of the universe for a while."
Senku leaned back in his chair, crossing his arms. The idea didn't fascinate him. Not at all. Magic was the polar opposite of everything that drove him: illusion, not truth; spectacle, not discovery. He could be making progress on his improved electrolysis project, or reading about the latest in lithium-sulfur batteries. But he looked at his father—this man who had walked among the stars, who had sacrificed nights for impossible dreams, and who now, in his fifties, got excited over two pieces of paper as if they were tickets to space.
Byakuya wasn't asking for much. Cooking together on Sundays, watching a baseball game now and then, and now this.
"Fine," Senku finally conceded, "But if the guy tries to sell us 'cosmic energy,' I'm standing up and explaining the law of conservation of mass out loud. Ten thousand percent chance that'll ruin the show."
Byakuya leaped from his chair as if he'd started an engine, enveloping Senku in a hug that smelled of green tea and adventure. "That's my boy! This is going to be epic! I promise you won't regret it. Or at least, not much."
As his father left, humming a made-up tune about wizards and stars, Senku returned to his experiment, but his mind was already wandering. Tomorrow was Byakuya's birthday. And seventeen years since he'd taken him in his arms one stormy night, when he'd found him abandoned on an old sofa in a secluded spot in the neighborhood—or so he used to say.
Senku wasn't one for grand gestures—science was his language of love—but for once, he would let illusion win. Just for one night.
What he didn't know was that, in some packed theater on the other side of town, a man with a sly smile and eyes that read souls was practicing a new trick: one that involved not just cards, but intertwined destinies. Asagiri Gen, the magician of the moment, had no idea that his next show would change the course of his life forever.
But that, of course, was only the beginning.