A married woman, Sumire, marries a serious and gentle husband with whom she has been in a relationship since college and feels happy in the couple's simple daily life. However, her life is completely changed by her husband's boss. While her husband was away, she took advantage of her boss's position and forcibly twisted a rod of swollen and vascular flesh. Sumire, who continued to enjoy pleasure she had never felt from her husband, gradually weakened her ability to resist and began to seek pleasure and pleasure on her own.
