After reuniting during summer vacation two years ago, the childhood friends began dating and moved in together at his small Tokyo apartment. They later returned home, married, and now live together in the countryside. The old house filled with childhood memories looks unchanged from that summer, but their love has only deepened. They embrace, crave each other, and spend their days enjoying passionate raw sex and creampies. This is one hot summer day in their married life—a sequel to their previous story.