On the way home from school, a strange old man called out to her. Since he said he would treat her to a meal, she decided to follow him without any suspicion, pure and innocent Yui. The old man said he was good at hypnosis and was practicing it. He begged her to accompany him in his practice, so she ended up following the old man... At first, Yui was skeptical about hypnosis. But before she knew it, her body wouldn't listen to her, and she was ravaged by the old man at his whim. She was made to urinate, squirt profusely, and have her anus played with until it twitched, turning Yui into the old man's toy. What will happen to her when the hypnosis wears off?
