Takeshi's girlfriend, Izumi, looks quiet but is sexually greedy. She's a college student with a fetish for doing naughty things that are just on the edge of being seen, even though she's embarrassed to be seen. Today, she came to Takeshi's house to play, and even though his family was there, she seduced him and had fun doing naughty things with him in secret, but she thought she wasn't being noticed, but her father saw her.