Hentai filmed on the eponymous novel from "Selen" Milky in 2006 and filmed Higuchi Yoshitaka. The story is on behalf of the sole heir of the family of Ringo, who had become very rich after the Second World war. His name is Naoto and as the heir and only son, he must pass the sacred family rite "Himatsubushi". But for that he needs an heir, but his lover was tragically killed right after the wedding. Grandpa Naoto-kun sends him into the