Yuka, a mother who has raised her son by herself. - She had always seduced the hearts of men with her overly revealing clothing, but it wasn't just her clothing that was 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 fun with them. - 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...