Blues of Chongro: When Jang Dae-in, the head of the Daeya faction, is killed by an assassin, Cheetah and Baekho, who have been claiming to be their successors and causing infighting in the meantime, try to recruit Kang Kang-chi, who was the fist hero of the past, to their side. However, according to his wife's will, Kang Kang-chi washed his hands as a cleaner at the garbage dump and turned around. However, in order to save his daughter who has been captured as a pawn, he is forced to get caught in the organization.