Shownu is a humble businessman; fixing engines for a living and smelling like gasoline 24/7. His workshop is located at the bad part of town so when a flower shop opens right beside his garage, Shownu knows he has to convince them to move. However, it doesn’t help that the young florist, Moonbyul looks as delicate as the daisies she gave him on their first meeting.  

Detective Jeon Jungkook is unwillingly assigned a mass murder case; Busan High School’s Blood Diamonds. His only lead is young Ahn Hwasa, the only survivor of the mass murder, bent on diving headfirst into the gang world. Jungkook finds out quickly that Hwasa cou