Deborah is confused by the sudden visit of her ex-fiancé, David. Three years ago when Deborah caught David cheating on her with her best friend, she broke up with him and called off their engagement. And now David is here to inform Deborah that her brother is in critical condition after an accident. Upset by the news and almost fainting, Deborah is blindsided again when David remarks that she’s a good actor and suggests that she only swooned to find her way into his arms again. While puzzled by his attitude, Deborah heads to see her brother. Little does she know that David’s revenge is about to begin.

Ayuka Haruna, a bodycon detective, is a lieutenant in the special promotion team. She spends her days investigating murders with her good partner, Samejima Koji, both in public and private life.