After seven years of marriage to a handsome man twenty years her senior—a 50-year-old whose passion for Misaki remains undiminished—her promise of fidelity is about to shatter. Despite his age advantage often leading him to surrender before she reaches climax during their intimate moments together (even when they promised absolute honesty), Misaki’s secret life is brewing. Her husband's childhood friend from the neighborhood is Hayato; due to their age gap and shared history with her husband (who always treats them like brothers), Hayato visits Misaki's home three times a week under the guise of family meals.
However, Hayato harbors deep romantic feelings for Misaki that she never recognized until he finally mustered the courage to confess. When she dismisses his declaration as a joke, fate intervenes days later when he unexpectedly attacks her while retrieving documents. Though initially resisting, Misaki quickly realizes she is thoroughly enjoying his advances. This marks her first betrayal of her husband, yet the thought of admitting the truth feels impossible. Instead, she allows Hayato to take charge, soon finding herself actively seeking out her 'brother-in-law,' leading to relentless infidelity behind her husband’s back.
Suspicion does creep into the marriage, but because Misaki continuously weaves elaborate lies and because her husband trusts her implicitly, this affair flourishes unchecked. Watch as this beautiful Japanese wife indulges in passionate encounters with her beloved best friend—a true tale of forbidden desire blossoming within domestic bliss! If you love stories about taboo relationships and secret liaisons, this scene featuring Saeko Matsushita is essential viewing.