Mini is a "Scum Detector", and her latest job is from a rich girl who wants to test her boyfriend's loyalty. However, her boyfriend, Zhao Yueming, is a straightforward gentleman, and Mini's usual methods don't work on him. This is a bit tricky for Mini, who is used to dealing with scumbags regularly. This game of tug-of-war between the womanizer and the one who understands them best is about to begin. Who will fall into the trap of love first?!