PAYBACK [ Translation ]

Yoohan, who entered the moneylending business when people his age were taking tests for their future careers, lived like a scoundrel, where he threatened and used violence to grab money as part of his job.

One day, he lost his family at the hands of someone who had a grudge against him. Feeling guilty for the death of his family, Yoohan lives an uneasy life filled with hard work and the desire to atone for his sins.

Then, by chance, he discovers that his former housemate, Song Myung Shin, had something to do with his younger brother's death and decides to take revenge. Yoohan, who had made up his mind, then met a man who said he would help him in the process of taking revenge on Song Myung Shin.