Kana is a young wife who has started working in place of her husband who was laid off. While her sex life with her husband who has become desperate is not going well, her boss at work, Asano, forces himself on her and steals her lips. Kana is raped in the mouth with a deep kiss that forces his tongue into her mouth, and she falls into the pleasure of French kissing, and she begins to masturbate remembering it. Eventually, she starts to ask for kissing training, secretly from her husband, with her tongue entangled and saliva dripping...she becomes addicted to deep kissing sex.