@Lil-Hari Her mom
Spoiler!
Is alive and her was the teacher who taught her how to control her powers. Also her mother is a mixed breed between a shark and the killer whale. The dad thought that the mom was dead but in reality the mother went back to the shark clan, the eldest brother knew of this.
I like to post spoilers for the stories I find interesting because I don't have much time to read novel due to busy schedule you will find me in most romantic historical manhwa comment sections