Byun Baekhyun is one of Shinjeons most notorious pirates who finds out that his ex is wanted in Inji.  Kim Seunghee is the strongest female martial artist in Shinjeon who becomes wanted after an incident with her of a Coach.  They meet on the roof of a building and things somehow turn out so that Seunghee is sailing the seas with Shinjeons most notorious pirate. Together, they look for Baekhyuns lost brother.