Kanjiru wakazuma no amai mitsu

Overview:

Kanae is a young wife who has sexual tendencies that she cannot tell her middle-aged husband. Meanwhile, her husband visits members-only happening bar with his manager, Sato, despite having problems at work. Masashi unknowingly makes Sato's favorite girl, Amon, into his emotional refuge. One day, her husband suddenly quit his job and ran away from home. Kanae follows his whereabouts and ends up at Amon's shop...