Seriously. 
She was already a pointlessly strong character before, now she is a pointlessly stupid one, as shown by the look in her eyes just now, which shows she going to aid in the opening of the demon gate, and her justification will be that the night hound killed her already dead father. Please author don't do her this, what is the point of painting her as a genius if she is going to die an absolute idiot who might send the world into chose and pointlessly deaths.