In the heart of Tokyo, a girl saves Shinichiro Sano, the former leader of the Black Dragons, from a deadly situation in a motorcycle shop. Years later, Mikey Sano, Shinichiro's little brother and now leader of the Tokyo Manji Gang, encounters the same girl accidentally in their territory. Intrigued, he approaches her “Hey, you’re not from around here, are you? What brings you to our turf?” he asks, his tone a mix of suspicion and intrigue