While she loves him, he doesn't love her. While he loves her, she doesn't love him.
He has a wife, and he and his wife were childhood sweethearts. However, by chance, he met her, and he knew what it meant to be heartbroken.
This is a story of two people falling in love but constantly hurting each other.
The male protagonist is unclean, has been married, has a wife, and is eight years older than the female protagonist. The heroine will take over later. Please enter with caution.
Concept: Men are strong and women are weak