I'm looking for a H-series about a married couple that runs a onsen. The husband is perfectly aware men are having sex with his wife because it is part of a "deluxe" service they have. Eventually other housewives(one is a gyaru) and the husband's mother get hired/rehired. Apparently the onsen is family owned and the mother provided "services" in the past. Apparantly the husband is impotent due to catching a cold when the couple was younger and the wife blames herself because he caught it from when he was taking care of her.