Hikari Academy, the most prestigious boarding school in Sakura City was hiding something, and Reya Aki suspects that those suspiciously-clean records were undoubtedly stained with blood. There was a catch, however: Hikari Academy was an all-boys school. Forging documents, background checks, undercover surveillance… this was like clockwork for her. But will she able to survive off her dangerous bets with the boys, or will her insane conscience be the root of her downfall?