I don't hate the combination of tags, but glancing at the completed WN tags this may not go anywhere. I'm already not fond of harems, but this apparently isn't romance so it could be fine or braindead Bakarina or disturbingly manipulative. Not even a romance tag? Not just no endgame or poly, just nothing. Seems like it's just wholesome cuteness so long as the lead keeps her braincells?
MC's original gender is immediately irrelevant to their current girliness, so this looks to be is a very standard childhood isekai. A genderswap or trans het romance would be fine, there's a shortage, but platonic relationships aren't a negative.
I expect I can only make it a few chapters into this, harem tag and all even if it's not romance and sexless, but the series does nothing wrong. It's so inoffensive that I'm continuing for now just to see if it ever takes a single risk.