My husband always goes on a business trip during Obon and the end of the year. When his wife, Yumiko, feels lonely with her husband and is overwhelmed with sexual desire, she finds a perverted doujinshi in her husband's room while he is on a business trip. Her husband, who she thought didn't have a strong sexual desire, finds a book like this... Yumiko is indulging in masturbation, imagining intense sex with her husband like in a doujinshi, when a man next to her shows up...? Unable to resist the young man's violent sex, Yumiko drowns in lust...!