During the year 2000, Ricardo, Pollo, Walter and Chiqui occupied a house in the Buenos Aires neighborhood of Congreso. The four young people forge a strong friendship that leads them to go through different stories of crime, drugs and social marginalization.
Living in Ikebukuro — an area infamous for juvenile crime, 21-year-old Makoto Majima becomes associated with a youth gang called the G-Boys. A troubleshooter known for his cool headedness and ability to get things done, Makoto diffuses tense situations around Ikebukuro to keep his friends and others out of harm's way. However, the mysterious death of his girlfriend and an escalating gang turf war threaten to be more than Makoto can handle.
The son of a world famous mystery writer, Jimmy Kudo, has achieved his own notoriety by assisting the local police as a student detective. He has always been able to solve the most difficult of criminal cases using his wits and power of reason.