In the past, he was a hot-blooded, wacko prosecutor like Jung. He was willing to fight against social irregularities to implement justice and aimed to bring down the corrupt. However, when his family was destroyed by such forces, he came to a deep realization. He cannot deal with them on his own. So, he acts like a loser while waiting for someone that can help him to arrive. Then one day, Prosecutor Jin Jung is issued to the Service Division.
