A marriage drama depicting the delicate and fluctuating Kokoro of Azusa Kirihara and Kana Nagasawa, both of prime age for sex! A former lesbian couple, they become intimate again after Azusa is found to be infertile! Kana, who accepts to be a surrogate mother at Azusa's request, has a tense wedding night with her unfamiliar husband! Azusa peeks at the sex and masturbates in jealousy! When Azusa and her husband get together with Kana and her boyfriend, they can't help but get entangled and the other men join in for a steamy foursome! They have more intense pair swapping sex than usual and squirt wildly, leading to a real climax and creampie!