JUR-869 When my wife’s friend, Koyuki-san, heard that we were trying to have a baby, she asked me for my seed, and I couldn’t resist getting caught up in an affair… Narumi Koyuki

Satoshi is being pressured by his wife to have a child as she suddenly grows anxious with her biological clock ticking. One day, his wife’s friend Koyuki comes to visit their home… Although she says she is trying to conceive, her relationship with her husband is not going well, and their lives keep drifting apart. Longing for warmth, she urges Satoshi to sleep with her just once. Meanwhile, Satoshi, who has begun to feel a sense of duty and exhaustion in his intimacy with his wife, ends up responding to her invitation…