After work, Misuzu's former boss, Ohta, visits the couple's home, claiming he's embarked on a new career path as a sex counselor. Upon seeing Misuzu, his former subordinate's wife, for the first time, Ohta instantly falls for her. Using his expertise and experience, he begins seducing her with primal, irresistible passion. His intense lovemaking introduces Misuzu to pleasures she's never known with her husband. Gradually, Misuzu starts moving her hips on her own accord, surrendering to desire as their affair evolves into something deeper and more intense.