Exclusively for Marina Shiraishi first mature comic! Based on the popular doujinshi comic "Furen Cuckoo Onsen" by Bifidus, this is a faithful live-action adaptation! Taeko Sakaki, 29, visits a hot spring alone to get revenge on her husband for cheating on her. There, she makes a mistake and spends a night with a man she meets by chance. Taeko, who experienced the climax of her first affair, becomes addicted to her relationship with the man from that point on. And as she falls, she feels the happiness and joy of being a woman as she experiences various types of play...