Bae Gang-hee

An aspiring singer who spends fifteen years alone on a deserted island before setting out on a journey to become a diva.

Mantis, an ace assassin, returns to the contract killer industry after a hiatus, encountering his trainee friend Jae-yi and a retired legendary killer Dok-go, who now runs the organization.

Seo-rim, drowning in debt, plans to kill a homeless girl, Sum-e, for identity theft. However, Sum-e unexpectedly kills Seo-rim's boyfriend and disappears. Now a suspect and facing blackmail, Seo-rim must confront her past and a shocking truth.