Payback

While other students were preparing to take their CSAT exams, Lee Yu-Han was swept up in an exhilarating lifestyle of crime and debauchery. While working for a loan shark, karma catches up to him when a family member dies from an act of revenge against him. After years of repenting for his sins and trying to turn over a new leaf, he meets a man in the entertainment industry who gives him the opportunity to get his revenge… (Source: Lezhin US, edited) *Note: Includes 15 extra chapters.*