Wives in 30's to 50's

Plot: Reiko has been married for four years and is now in her 30s, the prime of her life. Unable to use her voluptuous body, she cheats on her husband every day. The biggest reason for her cheating in the first place is that her husband Shinichi might have another woman. Reiko relies on an email from Asami that her husband receives and accesses the same website to find out who his lover is, but...