In the Chinese web novel, 'Mr. Killer Please Marry Me,' Yi Chengshi reveals the secret behind his name - he's actually a boy, not a girl. Filled with shounen ai and tragedy elements, this story delves into themes of androgynous characters, family conflict, mysterious pasts, and romantic subplots. With a touch of revenge, immortals, and wealthy characters, this tale unravels a web of secrets and dangerous encounters.