The Lewd Wife: The Sweet Scent of Her Nether Regions(2001)

Kimie, a married woman, is bored at home, and spends her days masturbating in her tracksuit without any makeup on. Her husband, Shinji, sighs at the sight of his wife. Concerned about their life together, their landlady advises Kimie to shed her tracksuit and prepare a feast for her husband when he returns home, enjoying a pleasant conversation. She then puts on some flashy clothes and goes out into the city. Shinji, who happens to be nearby, doesn't even recognize her. Through a series of unexpected events, Kimie becomes close to a younger girl named Yuki…