Kanon (Kanone) lives with her husband and father-in-law. Compared to her husband who is busy with work, Kanon opens up to her father-in-law who is kind and Kokoro and listens to her problems. However, her father-in-law secretly licks his lips at the sight of Kanon's body gradually becoming defenseless. Her father-in-law explodes with his filthy desire and attacks her. He forcibly cums inside her private parts, which are hidden by her thick hair and which only her husband is allowed to see...