Ai, who works in the First Investigation Division, a special fraud specialist, has been trying to get in touch with the "groundmakers" group that has been causing a stir recently.After a month of working at a snack bar that Ichigi uses for business negotiations, he finally manages to grab his tail.Then, he is offered to impersonate the landlady of a long-established inn called Yukawaya, and begins an undercover investigation...A 10 billion case, an absolutely unforgivable mistake, but I never imagined that the developer who appeared before Ai as a buyer in the final stages of elucidating the entire story was his husband...
