Isozaki, the manager of the Marutsu discount store, starts the "financial system." Since he can easily get a large amount of money, he can borrow more and more from Manda Finance. However, the company that provided the loan went bankrupt and Isozaki, who had no way to do it, evaporated. Ginji followed him, but while investigating, he discovered that Hinoshita Kosan was in the brain behind the "system finances"