UncrownedKing
It would be interesting to see more of the goddesses considering where they live unless you completely skip her childhood nothing about them in the story wouldn't make sense and even more so if she plans to become a hero with one of them being a part-timer. A pity that any world travel is occurring only after this story end even if it's most likely for the best. Any chance of MC learning magic? I don't really remember what type of energy the ghosts use in the original series but depending on it with study and training she could basically do everything any ghost could do and much more and that's not even including the potential others types of energies she may be able to use and some are rather possible to be capable of being used because of both her parent and the abilities she was gifted.