In a seemingly normal city, a girl named Luna and a boy named Ares meet with his intention of manipulate Luna for his personal gain. What starts as a calculated game of affection turns into something darker when she realize he not like everyone else. Ares is deeply disturbed, harboring a twisted obsession with power and control. At first, it’s a game of love and manipulation, but soon it becomes a deadly competition. They begin competing on how many victims they can claim without getting caught, keeping their dark secret while outwardly maintaining the façade of a normal relationship. Meanwhile, Niki, enters the picture. He’s kind-hearted and has fallen for Luna, believing he can help her heal from her “troubled past.” Niki's genuine affection and protective nature blind him to Luna's true nature. As he tries to save her from herself, he unknowingly steps into the web of her and Ares's twisted game. Niki tries harder to protect Luna, he soon becomes a pawn in their deadly competition. He is determined to fix her, but little does he know that Luna is not what he think she is.