The story revolves around 20-year-old Makoto, who frequently gets involved in highly dangerous situations, usually against his own judgment. Along for the ride are his best buddies Shun, Masa, and Takashi, the enigmatic leader of a local gang in Ikebukuro.

Living in an area known for its juvenile crime, 21-year-old Makoto has become a member of a youth gang called the G-Boys. Known for his cool head and ability to get things done, Makoto becomes a key troubleshooter for the gang by diffusing tense situations and keeping his friends out of harm's way. However, the death of his girlfriend and an escalating turf war with a rival gang threaten to be more than Makoto can handle.

This special takes place three years after the end of the original series. Makoto is homeless as a result of his mom selling out their shop and soon becomes involved in a ‘bone smasher’ case, in which someone puts homeless people to sleep and breaks their bones.