In a Fantasy

Su Yi, an ordinary corporate drone, discovers he can make the "what ifs" in his imagination come true. He brings his ex-girlfriend into existence with "If only I'd confessed in high school," and conjures a fortune with "What if I'd won five million in the lottery?" But he doesn't realize that every fantasy devours a piece of reality. By the time he tries to get back on track, the whole world has become a mad amusement park cobbled together from fragments of his imagination.