Gongchan is the youngest young master of the Jung's Mafia. Being the maknae, he is protected and being cares a lot by his older hung, Sandeul, Dongwoo and Jinyoung but Gongchan had enough of being a burden to them. He want to be the one who protect them, he want to be strong for his brothers! This story revolves around the brothers who lives in the dangerous mafia world.