Ikebukuro is home to many different businesses and gangs. This includes Makoto Majima: the infamous "troubleshooter" who mediates between warring factions. Makoto knows all of the ins and outs of the bustling Tokyo district and strives to maintain peace alongside the G-Boys, who assist Makoto in his troubleshooting endeavors. Led by the charismatic and ruthless Takashi Andou, the G-Boys is the most influential gang in all of Ikebukuro. However, when the new faction "Red Angels" begins to move in on the G-Boys' turf, immediate tensions rise between them. With numerous enemies scattered around and within the G-Boys, navigating through the streets becomes more difficult for Makoto. While continuing to troubleshoot problems, he slowly unravels a plot that may trigger an all-out war and threaten the entirety of Ikebukuro. [Written by MAL Rewrite]

Crime-ridden Ikebukuro is a haven for violent gangs, the Yakuza, and home to Makoto Majima. To protect his friends, this charismatic troubleshooter mediates disputes among the warring factions—even fixing problems the police can't. But when a rising tide of violence results in Makoto losing a loved one, can he ride out the storm, or will he drown in all the spilled blood that floods his streets? (Source: Funimation)