@arimareiji That's perfect.
@starburst98 Very true. In this case, she has a legitimate reason for feelings of love to blossom; I know if some girl showed up and magically fixed my busted ass knees so I didn't have to deal with near crippling pain every time it rained or got cold, I would love and worship her. We're mostly just ribbing on the prevalence of how girls in harem manga (doesn't have to be isekai, after all, it's just easier since the author can make a world where polygamy is legal, accepted, and somewhat normal) seem to fall in love with the MC for just about any reason that often boils down to "because he was nice to her" (makes it real easy to self-insert, because it's such a low bar).
Don't get me wrong, though; I love isekai (I'm writing my own (tongue-in-cheek) isekai story to give my mind a break from my main works), but you gotta admit that the standard for female characters falling head over heels for the MC is either
incredibly low or flat out impossible (which, oddly, makes it more understandable and plausible, like in this case).