Sumire, a married woman, has married a serious and kind husband with whom she has been in a relationship since college, and feels happy in their casual daily life. - However, her life changes completely due to her husband's boss. - While her husband was away, she took advantage of her position as her boss and forcibly screwed her swollen penis, which had visible veins, into Violet. - Sumire, who continued to be given pleasure that she had never felt before with her husband, gradually lost her ability to resist and began to seek pleasure and a cock on her own.