One can hope, Granted i have no idea How she could supplant her mother. Hell both characters are Insanely week by comparison to most of the characters they meet. Combine with the fact that they are still exploring their own bodies. I think they would be lucky to just escape with the orb. Let alone defeat one of the gods.
Side note, this has to be one of the Most dangerous universes i have ever seen. Just due to how Many powerful creatures exist in it. From the various type of dragons, the kitsunes, and god knows what else. Their is a lot of creatures that can one shot you.