Maybe the Dev will add other guys (Like the Dad) in the future, or sharing with other guys, who knows, if it ends up in Ntr it depends on the Dev, He have made it clear that it is okay for the Mc to do the Ntr (Netori) so it is possible that he plans situations with other guys and their partners so that later the Mc steals them or something like that, although as someone already mentioned in the comments, people do not usually want to see other guys sleeping with the Mc's targets, even if they are their husbandsSo what does that mean?
What I don't understand is that if he is already aware that people don't like NTR, sharing, or seeing other guys with the women who are the MC's targets, why does he insist that he is interested in adding that content hahaha... if he ends up adding it then he shouldn't complain later if people start throwing hate at him