Comments of chapter undefined of A Wolf's Howl, A Fairy's Wing

I'm assuming that the institute wants to not only understand shapeshifters better but the possibility of someone like Eric that can use both system/ways of power. Are you going to keep it so that only Eric can use both ways or will you introduce some other person/being that can use both? I understand that this is could be a spoiler and really don't expect an answer but wanted to ask just to get it out there. TFTC, amazing story, take care, and keep up the great work. 👍