
For those who said every characters are selfish let me say something. All of them have their own issues. The mom suffered with post partum depression. Because of that she neglected her own son for years. The son was neglected for years. His parents don't really showered him with love as they should. What do you expected when your mom who had been neglecting you starts act like a mom? If it's me I'll think there's something she hide or she wants something from me. And it's not right to blame the mom or the son. If you want to blame someone, blame the people who asked the mom to care about the son than herself when she was pregnant.

Anyway this promo have novel. The English translation is a little bit slow but its fine.
Slight spoiler
The ml's dad is gay. After the fl's parents die, he adopted her because she's resemble his childhood lover which is her dad. When they're younger the ml grandpa found them kissing and he was forced to marry his wife. I don't remember much but that's the reason why he abuse the ml. He thought the ml is the reason why he can't stay with his boyfriend
One of the reasons I read this story is because of her dad. I hope he's alive