Due to his 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, giving up her happiness to raise Rika to 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 very carefully. That night she found out that they were having sex, and although Rika wanted her boyfriend to wear a condom, he refused and forced her to let him play naked. He also found Hikari sneaking outside the door. While drinking alone, he approached and wanted to drink with her. But his main purpose was to force her. It had been a long time since she had had sex, she had to get used to feeling lonely and hide her desires deep in her heart. But he seemed to have awakened her instincts, the instincts of a woman in her had triumphed over the instincts of a mother. Only then did she know his true face, a person who only treats women as a toy. She wanted him to break up with Rika and agreed to use his body in her place. But she knew she wanted to have sex, she wanted to enjoy this amazing cock, she herself was just trying to avoid the truth. And what she feared the most also happened, Rika accidentally discovered that the two were having sex with each other...