But logically speaking, if he is her sister's son, then she is his aunt....

Legally, yes. But she's adopted, so...

I'm still bitter about his father tho.
Yes, he's saving his lover, but damn.

I'm not happy if she's ended up with that nephew tho. It's so wrong on many levels.

I completely agree with you. ☠

He also had to have knkw that rhe mc had a crush on him, he is a sick man if he did and told her to go die in place of her sister.