Due to her young age, Hikari got married early. Many things happened and she quickly divorced her husband. As a single mother, she had to work hard, giving up her own happiness to raise Rika to adulthood. Today, Hikari's daughter brings her boyfriend home. Hikari does not want her daughter to follow in her footsteps, so she wants Rika to choose her boyfriend carefully. That night, she discovered the two having sex, even though Rika wanted her boyfriend to wear a condom, he refused and forced her to let him have sex without it. He also discovered Hikari eavesdropping outside. While drinking alone, he approached her and wanted to drink with her. But his real intention was to force her. It had been a long time since she had sex, she had gotten used to feeling lonely and buried her desires deep inside. But he seemed to awaken her instincts, the instincts of a woman in her triumphing over the instincts of a mother. After that incident, she saw his true face, a man who only saw women as toys. She wanted him to break up with Rika and agreed to let her body replace the girl. But she knew she wanted to have sex, to enjoy this amazing cock, she was just trying to avoid the truth. And her worst fear came true, Rika accidentally discovered the two of them having sex...