Due to her impulsive youth, Hikari got married early. As a result, many things happened and she quickly divorced her husband. As a single mother, she had to work hard and give up her happiness to raise Rika into adulthood. Today Hikari's daughter brought her boyfriend home. Hikari doesn't want her daughter to follow in her footsteps, so she wants Rika to choose her boyfriend carefully. That night she discovered the two of them having sex. Even though Rika wanted her boyfriend to wear a condom, he absolutely refused and forced her to let him play naked. He also discovered Hikari sneaking outside the door. While drinking alone, he approached her and wanted to drink with her. But his main purpose was to rape her. It had been a long time since she had made love, she had to get used to the feeling of loneliness and hide her desires deep inside. But he seemed to have awakened her instincts, her womanly instincts had won over her mother's instincts. Only after that incident did she know his true face, a person who only considered women as toys. She wants him to break up with Rika and agree to use her body to replace her. But she knew she wanted to have sex, wanted to enjoy this wonderful cock, she was just trying to avoid the truth. And what she feared the most happened, Rika accidentally discovered the two of them making love...