OBA-300 Yuka Nishino, a tanned mother with a strong sexual desire who can't resist and takes a man with her.

Yuka, a mother who has raised her son by herself. - She has always seduced the hearts of men with her overly revealing clothes, but it wasn't just her clothes that were excessive, but her sexual desire as well. - In order to quell the burning sensation in my aching body, I brought my boss at work into my house during the day and had a secret affair with him. - Meanwhile, Shirakawa, a neighbor, learns of this and approaches Yuka... - She forgets about her son, Yoichi, and takes him into her room without thinking. - However, Yoichi happened to witness it...