I am try to explain
(English is not my native language. I will use the help of Skyn... er Google, so if he distorts my words for his needs, do not scold me much)
I agree that this is the best game here. What I write below is not a criticism. I totally like the game. This is just an explanation.
1) People like to see things in games that are impossible in real life.
Schoolgirls, incest, superheroine, aliens, witchcraft, mind control, etc. What is impossible and what they will never have, they are looking for it. (yes, I know schoolgirls are real, but 20 years in prison)
2) People do not want to see what is available to them, ordinary women, fat bellies, etc.
3) People want to get things for the effort. The things that they get easily people do not appreciate.
Thus, we have a situation when a magnificent, fully animated game with dozens of characters and dozens of unique poses for each character does not enjoy the same success as a poor game, without animation, with a monstrous grind, the author of which for 3 years drew well a couple of hundred pictures , but it has incest, mind control and schoolgirls.
Yes, there is a school in this game too, but the school is still in the creation. In this game there was also incest, but mother and son are not working here, here they are accepted as peers, and the main character is too ordinary a man with a fat stomach, people see these every day in the mirror, and they want to be someone better. At least in the game.