Today, Hikari, who works as a raiding investigator with her husband, waits for an encounter with Takeda, an executive of the organization, by pretending to be a customer who was sneaking into the casino where the organization is hiding. Nearby, her husband, dressed as a waiter, also checks on her. After some time has passed since the start of the game, the target, Takeda, approaches Hikari. She takes advantage of Takeda's desire to play a game for the night, loses and tries to get information from him, but Takeda finds out that Hikari is an infiltrated investigator...