Female Loan Shark Yuri: A Garden of Nights Writhing in Shame(2015)

Yuri, who was abandoned by her parents who were in debt, is saved by Saejima, who was collecting loan shark debts. A few years later, the two meet again and form a bond, but Saejima is murdered by someone. Yuri takes over from him and starts a loan shark company for women, but she uses underhanded methods and sexual allure to extort money from them...