ソレダケ that's it

Samao Daikoku’s family register was taken which keeps him from escaping the underground life that he has led. To get away once and for all, Samao Daikoku breaks into Daikichi Ebisu's coin locker to steal gold. Daikichi Ebisu is involved in a criminal organization. In the locker, Samao Daikoku finds a hard disk containing personal information on runaways, homeless people, bankrupt people and prostitutes. He hides the hard disk, but is locked up by Daikichi Ebisu. There, he sees a prostitute, Ami Nanmu and he also faces an evil gang boss, Kan Senju. Samao Daikoku is tortured by the gang boss. The mystery behind Samao Daikoku’s past is revealed.