When Yusuke heard the news that his mother, Chisato, had decided to remarry, his heart tightened with emotion. Though he truly wanted to celebrate her happiness after all the years she had struggled alone, he was overwhelmed by conflicting feelings—deep down, a sense of loss and jealous possessiveness surged within him, refusing to let her go to anyone else. He knew this attachment was twisted, a distorted kind of love, yet the emotions choking his heart refused to be suppressed. That night, driven by irresistible longing, Yusuke made up his mind and headed toward the bedroom where Chisato was sleeping.