Read Webtoon Debtbound by Blood online in English. Also known as Debt Bound by Blood, 사채지간, Sachaejigan, The Devil’s Classroom, Private Debtors, and Loan Shark Ties.

Kim Sang-an lives by one rule: every debt must be paid. As a feared loan shark, he is used to dealing with people at their worst, but nothing prepares him for the death of his younger sister, a teacher driven to despair by the cruelty of her own students. Instead of grieving quietly, Sang-an steps into the classroom as their new homeroom teacher, carrying a lesson none of them are ready to face.

Behind the school walls, discipline turns into a dangerous game of pressure, fear, and revenge. Sang-an is not a hero, and the students are far from innocent, making their clash feel brutal, tense, and morally uneasy from the start.

This series may appeal to readers who enjoy revenge drama, school noir, and dark action stories.