She is 17\18 yo but she is acting like a 7yo. She had to have went through history\royalty lessons so she should KNOW that she is playing right into that girl's hands. But MC doesn't think about it.
I understand that she is emotional wanting her father's love\acceptance\attention and having witness her mother's name\honor being dragged in the mud. MC should still have time to think that she is being played, how to get revenge on the girl.
It is aggravating because there is ABSOLUTELY no one upstairs not even a hamster in a wheel.
I do like that it showed and spent time on the before which is what i wanted in manhwa and manga series instead of plopping the reader right at the death and doing flashbacks throughout the story.