Shortly after celebrating her first year of marriage to her younger husband, Hikari found herself unsatisfied with married life. He was a mama's boy, obsessed especially with breasts. Amid this frustration, Hikari began a physical relationship with her boss, Hayasaka, intending it to be nothing more than a fling. When Hayasaka discovered her marital situation, he took control of her at the office, forcing himself on her despite her resistance and delivering rough spanking. To her surprise, Hikari began to feel arousal during the ordeal.