Sungmin is new to Seoul’s topnotch prison and is still learning the ropes. With the guidance of Heechul, Sungmin slowly breaks free from his sociopathic ways and experiences the meaning of friendship and the new world of emotion that he’s never felt before. But in the midst of it all, Sungmin quickly learns about first love – his target being inmate Eunhyuk, who has no interest in the latter wh