Riku's abode is in Shinjuku Kabukicho, a place dominated by the yearning for money, women, and drugs. As a student in high school, he is a celebrated figure known as the "golden boy" of the area, evoking terror in the hearts of even the yakuza. In the event that the region were to come under threat from the villains that populate this netherworld, jeopardizing their existence and prosperity, what sort of confrontation would ensue?