Minami no Teiou

Ginjirou Manda operates a loan shark business in Osaka and is connected to multiple Yakuza gangs. He imposes a steep interest rate known as toichi, which adds 10% every ten days, totaling 365% annually. His aggressive methods in collecting debts have earned him the nickname "Minami no Oni," or the "Demon" of the Minami business district. Borrowers who attempt to deceive him are consistently outmaneuvered, and he ensures they repay what they owe.