Three years after his mother passed away, last year his father remarried to a young woman (Yamase). However, the son couldn't see her as his mother but rather as an object of sexual desire. One day while she was showering, he entered her changing room and took out her underwear to smell it. He fantasized about being made to suckle by his mother and masturbated. Another time, she started masturbating in the kitchen. When he peeked at her hiding behind something, she noticed him and teased him by exposing herself. "So you've been watching me all along?" She accepted him...*Distribution methods may vary depending on the recording contents.