Substitute

"21 days. 7 hundred million won. 29 strangers. One unforgettable man." Yoon Ji-won never planned to become a substitute driver. He never planned to be locked inside a building for 21 days with 29 dangerously attractive men. And he definitely didn't plan to have his world turned upside down by a smooth-talking younger guy who won't leave him alone. After a mysterious interview, Ji-won is thrown into a secretive, high-stakes project with an offer too tempting to refuse. The rules? Obey. Stay. Survive. But when he meets "Number Three," everything starts to unravel. Cold stares. Lingering touches. A spark that turns into a fire he can't put out. Is it destiny? Or just another trap? For readers who crave intense power dynamics, isolated tension, and twisted attraction wrapped in a sleek, modern BL thriller.