I mean if people are reading this because they want a pure romance manga it would probably help to notice that the theme says "Harem" Also what were you expecting from a Isekai manga? If the main protagonist is male, its an isekai and there are ANY hints at a romance its almost certain there will be a harem or have harem undertones, As proof of this you can go to the manga search and exclude harem but include romance and reincarnation, there are 2 pages of books that have no harem, BUT if you remove the ones with a female protagonist and the ones that do have harem undertones? I can bet you can count how many there are on two hands.