
How did she have the spirit powers or whatever u call it.

I think Keira’s stressful emotions are what blocks her powers, as I recall she used her powers on her first date unknowingly(when she teleported to playboys side). That hand shake probably has to do with how that B stole her power. It’s also possible like the diary she read they could both be his real daughters but since that B mother suffered she wanted Keira’s life to be a living hell. Or she could be related to a relative of the Duch that was exiled.

Spoilers ahead
So basically, the fake lady is actually FL real sister but she died as a baby (or was stillborn). If I remember correctly, the mom was desperate and asked the devil to bring back her daughter and the mom of the fake lady died and the devil started possessing the body of the fake lady. FL and fake lady can both wield spirits, but FL needs to have physical contact with fake lady like she read in the diary from the aunt’s library.
I think Aaron is gonna lose but I don't want him to like this all the coach's plan and I literally hate that evil coach. I think Yu might kill Aaron or injure him badly and his family are gonna be devastated. I just want to see what is gonna happen maybe the other guy the one who met yuu when he was younger might interrupt or smth like that.