The beautiful but lazy housewife Chisato, who treats cheating as a daily habit, begins to feel unsatisfied with her affairs with men and starts seeking new thrills. She proposes to her lover that he join her in a lesbian affair with a new woman named Airi. The lover agrees, on the condition that he gets to watch the lesbian sex, and together they conspire to arrange a dinner party. There, Chisato skillfully uses her words to seduce Airi and deepen their intimacy. The story unfolds the depths of infidelity and the intricate threads of temptation between women.