ai san, a seemingly happy young wife, has been having sex with her husband every night but is no longer satisfied with regular sex. she gradually becomes interested in anal sex, but her loving husband has no experience with it. so, she asks an acquaintance to introduce her to a veteran who is skilled in anal sex, and ai san's first anal sex, or anal virginity, is taken away... [additional uncut footage available on hmdnc810 amateur floor.]