Chizuru (Furukawa Iori) is the female president of Rose Finance, a consumer loan company exclusively for women that lends money at an exorbitant interest rate of 50% in 10 days. Since losing the only man she loved in her life, Saejima, for money, she has risen to the top of the underworld as the "Queen of Loan Sharks," but the debt imposed on her is nearing its end. However, Gondo, a leading figure in the underworld, has presented her with further challenges in order to keep her ruthlessness, genius business acumen, and overwhelming beauty in his hands. Offering her body is no big deal for her at the moment. But... At that time, Chizuru learns a shocking truth. Her beloved Saejima is still alive!! The "Queen of Loan Sharks"'s last and biggest gamble begins in order to get back the love she thought she lost...