Nah she is a Full Pledge Siscon.
She love her sister too much that I dunno if she already notice the fact that she 's putting alice in the cage the way she was putted by her parents and herself on the same manner.
The good thing is alice found her bae that helped her break that jail.and learned to fly with her own wings.
Though adel's boi looks nice and kind though.she just need to appreciate him more and let go, it would be good to see more screentime of them together.
she has to pass the baton to okisaki whether she like it or not,and she will not let that happen without having a good fight.
For now I want to think she is
just a tsudere silly nymph.XD.
THANK YOU FOR THE TRANSLATIONS!!❤😇