Let Dai is a Boys Love Sunjeong Manhwa by Woon Soo-yeon. Set in a Clockwork Orange-esque Neo Seoul, Jaehee Yoo was just an Ordinary High School Student who would buy flowers for his girlfriend on Valentine's Day. That is, until he sees a group of Delinquents assaulting a young woman. He decides to step in and play hero. Too bad for him this event will bring him face to face with Dai Lee, the infamous leader of the Furies gang and change the course of his life forever.