The girls don’t start a lesbian relationship, it’s literally a bisexual harem where the MC as the sole and only male usually gets some action as well from all of the girls with threesomes before being blue balled at the end (as the gag of the story). There are barely any “NTR dream chapters” as I counted maybe 2 out of the 60 chapters released with one of them having the MC beating the crap out of the guy before anything happens and the other with the chef who after sniffing his own chloroform, he fainted and dreamed up the whole thing and was quickly arrested by the police after being discovered with the evidence. The ending was overall good, this was an overall solid story for what it sought out to be.