Summary Minami no Teiou from Kainu Manga
Minami no Teiou summary: Centers around Ginjirou Manda, a loan shark who charges toichi — 10% more interest every 10 days, or 365% every year. Thanks to his unrelenting money-collecting tactics, he is feared as "Minami no Oni" or the "Demon" of Osaka's Minami business district.