My husband doesn't know - my lewd desires and secrets

He goes out with his husband who has started playing entertainment golf, and his wife Kana also starts playing golf... Her life changed completely after her husband encountered her subordinate Uchimura. I guess I ended up having a physical relationship with him. She feels guilty towards her husband and tells her that it's a one-off mischief, and keeps her distance from Uchimura. However, he gradually becomes drowned in the intense and violent caresses that approach him with youth and momentum. And little by little, the two of them become involved in everyday life...