It's a nice effort, but it has much room for improvement. I shall elaborate on how this could have been made great. I'm going my best to give some constructive criticism here.
1) Generally speaking, an NTR type game is the worst type of game possible when making a kinetic novel. If you do it poorly which is a high probability... Well just look at the comments. It's pretty much all toxic. Although, to be fair to other creators it is possible to do that right. Here is an example game of that done right.
https://f95zone.to/threads/family-friends-and-strangers-ch-1-5-johnandrich.22416/ Family Friends and Strangers does what this game tried to do, but more in the right way than the wrong way. That's my "good example" and even that game would be much better were it to have choices, but the way that they did it they did it right.
2) The renders are mostly good, but one of them stands out.
The eyes on the girl here... No just no guy come on. You need to omit such an image if you do not go through the effort of photoshopping over her eyes. That derpy look is off putting.
3) Characters severely lack proper development. Never are you seen talking to your so-called "girlfriend". Nor do you have a cup of coffee with mom in the morning. Nor do you get a phone call from your sister. Nor is the bully ever actually seen bullying you. I think it's casually mentioned once. In no way is any effort made to build any sort of "emotional attachment" to these characters. Now I'm not saying that you should have to spend hours talking with all of these characters and interacting with them on a level so that you can truly get inside their soul in some sort of really slow burn. However, there is a minimum threshold for character development for characters to be made in a way for us to care at all about them. It's way below that bar.
4) A severe lacking of storytelling. Much of this goes along with point 3 and in storytelling, characters are developed. More so what I mean by this is some sort of character arc. None of the female characters are distinguishable from one another in any way other than physical appearance. It's always pretty much "Oh that guy over there has a big black dick? I'm gonna go fuck him now." No effort was even made. That's the whole story arc... For the females. Each and every one of them.
Welp... good luck with your game.