Synopsis: Debtbound by Blood

Kim Sang-an is a cold-blooded loan shark. When his younger sister, a schoolteacher, takes her own life after relentless bullying from her students, he becomes the homeroom teacher of those very students to collect the price of her life. A merciless loan shark who will collect his debts even if it means descending into hell and a class of devil-like students... A vicious, twisted teacher-student relationship. (Source: Naver, translated) [This series was migrated from the old Kagane. There may be missing data or inaccuracies.]