Kasumi

The heroine this time. Since her daughter Hazuki was born she hasn't had sex with her husband, and due to her husband and daughter getting along too well, she has lost her place in her family. At that moment, the old man next door set his sights on her.
Contrary to her voluptuous body, she doesn't have confidence in herself.
She's also emotionally weak and, as a result, is easily taken advantage of.