I know for a fact that some niche groups of people enjoy this game.
The only things that are "average" are the models (and that is 100% debatable).
You play as an MC who helps your friend manipulate multiple girls over the course of more than a year into HIS harem (eliminating everyone who doesn't like NTR). All of them have a date and have sex with your friend (alienating anybody who cares about virgins), then for some reason MC feels entitled to the new girl who shows up and conveys this to his friend by not saying "hey, I kind of want to pursue this girl" (which eliminates everyone who cares about character writing), when she "lol no" to you and causes the rest of the group to alienate you (eliminates anybody wanting "good/nice" girls). MC's response is to reluctantly ask Deus-ex-Daddy to help him, which he does with instantaneous mind "corruption" that has seemingly no limit on distance or amount of people that it can be used on, oh and it also can raise and lower individual sex drives (which removes anyone wanting "compelling" netori) and turn the girls into objects that really can't say no to you (removes anyone who wants a "compelling" story, adventure, or romp
So who is this game for?
Fans of Netori who dont mind being cucked (as a player) for over a year (and as the MC) for mutliple weeks, that enjoy non virgins that have only had a single boyfriend (limited experience) who indirectly bullied you by exlcuding you from a group you have no claim to, who dont need compeling, believable, or realistic characters, and that dont really want to do anything beyond reading to accomplish their fetish (which is done by the first update)
A kinetic novel can be compelling, but not a single part of this game is, thus removing anyone who doesn't want exactly what the developer is offering. It is not surprising that this game has almost exclusively 1 or 5 star reviews.