A Dog's Life

Katsura is brought to the mansion of Soichiro, the son of a rich family, as a playmate. The only thing in the world that Katsura desires is to be able to protect his beloved Soichiro. Eventually, the two of them begin a physical relationship, but then, suddenly, Soichiro disappears. After losing the person he wanted to protect, Katsura becomes a gangster......!

(Source: Coolmic)