Saki Hoshino is 25-years-old and a member of the Cheat team. The Cheat team is a group of swindlers who target other swindlers that stole from people. The Cheat team was created by Detective Kazuki Anzai and consists of Police Officer Yuto Kamo, ex-private detective Shun Negishi, genius hacker Mizuki Maruyama and Saki Hoshino. Meanwhile, Saki Hoshino has a secret. She is also a member of an unpopular idol group. The idol group consists of herself, Mai and Yuna. The manager of her idol group is Shinji Nakagome. Saki Hoshino uses the stage name of Momo Kisaragi when she performs with the group.