My Happy Ending Season 1 Episode 7 Episode 7 ( Air Date 2024-01-20 ) Genre Mystery, Drama category. Overview "Soon-young recalls the day he got an email that revealed A-rin is not his biological daughter. After Jae-won realizes the reason behind Soon-young’s affair, she apologizes, but he doesn’t accept her apology. Jae-won decides to accept Soon-young’s terms and give up on A-rin.".