"but they are not blood..." you need to be brain dead to think like that at this point.
If he comes with anything but some wholesome route, or mc scoulding/teaching that anything between he and them is wrong, this will trun out to be a B or C nich trash, period. The innuendos are already above...
FMC main experssion of "everyone else is garbage, eh"... aside from her friend, self interest, etc, she treats all like trash... if... IF, she gets a development ark, it will need to be really weel writen, or she never changes.
Delusional to the bone, good that she done enough to speed run the ruin ark, gg.
The problem here is, she got isekaied to a game, now living there what she makes? still treats it like a game, and being so set on the path in her mind she not even try to see the whole picture. Alen in the other...
Its like this type have more personality, while anime is trying to follow the art of the novel? its not bad but maybe is because we got too atached to the manga...