In the nation of “San Romeria,” where the war against gangs rages on, the protagonist Nicol is wrongfully accused and unjustly imprisoned. He is sent to Craneo Prison, a newly established “slaughterhouse for criminals” designed to house notorious gang members. Amid the hellish conditions of prison life, Nicol is gradually consumed by guilt. Will Nicol be able to clear his name and break free from his inescapable fate tied to the gangs? (Source: Naver, translated)