Acid Town manga volume 5 features story and art by Kyugo.

In a run-down city riddled with poverty and gangs, survival is a daily struggle. In a shocking revelation of the relationship between the scheming Reiji Nakamoto of the Snakes and Masatsugu, heir to the Seidoukai yakuza group, the threads between Reiji's origins, Yuki's painful past, and Hyoudo's complicated loyalties begin to unravel, exposing the decade-old web of hatred, adoration, and hurt behind the violence tearing the city apart.

Reiji and his sister Hisako are the children of the Kawaguchi group's leader, sworn enemies of the Seidoukai. Orphaned by the conflict between groups tearing the city apart, they are taken in by none other than Domoto, the head of the Seidoukai himself. Masatsugu, young heir to the Seidoukai, is immediately besotted with the siblings, cherishing and looking after them in the hopes of one day seeing Reiji and Hisako achieve their own bright futures, free from the stain of the criminal underworld. But his father holds less than noble intentions toward the two — and there is no easy escape from the old hatreds and bad blood of the past.