Reiko is not my biological mother. She married my father while I was an adult student, then raised me like her own after he died soon after the wedding. As we lived alone together, my admiration for her became romantic love, and I dreamed of making her happy in my father’s place. My best friend Takumi destroys that dream by pretending to have no interest in her, getting close behind my back, and tempting her into an affair whenever I am away.