Details

Ryosuke, who has affection but his lower body does not react to sex with his wife, and Yuji, who caresses his wife too much, are too light-hearted. Two husbands who live in the same condominium sign a contract to sleep each other's wives in order to stimulate their sexual life. The wives were confused by the selfish husband's arrangement, but gradually drowned in the nasty and distorted relationship.