PancakesWitch
I think this was going to happen regardless of what Kireina did. I say this because the fact is the original umbra died and the person we are seeing is nothing left over her memories/Energy after the original umbra dead .U may say how can her other self can talk that if nothing just memories /energy because of Kireina main power are chaos and defiance.The thing keep her alive is also keep her trap in one place.I think this situation is not impossible to free her other self and the free her other self is to turn her ego weapon at last what I think.