TL;DR at the bottom.
When I read the 1-star reviews, I thought they were exaggerating. Surely, it couldn't be THAT grindy, it's a porn game after all, right? Well... They weren't. I would say they understated the grind, even.
I legit spent at least 2 hours just clicking the 'snooze' and 'wait 2 hours' buttons. There isn't even enough meaningful actions you can do to spend your energy, so you need to use snooze to skip time to the next day. There are NPC's and places, but 99% of the time interacting with them does nothing, because you need to follow a very strick step-by-step process to progress, and no logic or reason will make you figure it out on your own.
Example: At one point I got my relationship with a girl to "This is Vika, we are are best friends and there is love between us." these are the final relationship levels, the end of the grind. Well, what did I get for almost half an hour of repeated actions? Nothing. Not even a hanky panky. I couldn't even use the flirt action with her, despite the previous relationship level before 'loving' being 'easy flirting'. The first Flirting action, 'compliment', actually lowered the relationship level, and this was true for all relationship levels. The reason? Because guess what, it turns out MC has acne, and you can't flirt with acne no matter your relationship level. Nowhere does it even say the reason your flirting even fails. Your character description just says you have acne. That's it.
"WELL DUMMY, CURE IT THEN", you say. You're right! I tried, there's a health center with a beauty salon and medical center, so the solution is simple right? Lol. When you go there, you don't get the option to cure it at all. Not even another grindy process, not an option at all. What you gotta do is, go to this woman, who is in the university building, who you spent an hour IRL doing workout actions and licking her feet, and talk to her. She basically says you gotta pay 50k monies to cure it at medical center. 25k if you become her slave. It is EXTREMELY specifically railroaded. Then and only then can you start actually flirting, and even after that you won't get anything beyond kissing without following some very specific steps, written in your notebook. Add in the fact you need to grind money too, a lot of it. It's, again, just repetitive clicking and skipping time. These aren't 'repeat 3 times' actions by the way, even progressing relationships with the girl who points you at the acne cure takes like 10-ish repeat events. And the events need to be on specific days, at specific times. Your Pushups need to be punctual, bro. What a waste of time. This is supposed to be a Sandbox game, by the way. Figuring the Dev's weird thought process is the only Sandbox part of the game.
Oh, also the UI is an unintuitive mess for how much moving around you need to do.
There are more things I can bash, like the pay-walled notebook which acts as a guide, and the god-awful writing, but I won't. The sheer amount of time you need to spend to get to anything worthy of a wank, is utterly absurd. Even if you knew the exact things you had to do to progress. Add to this the fact this has no value as a non-porn game because of its awful design, any minute you spend in this game ends up thrown into the garbage pit.
TL;DR: Unplayable without cheats, and a waste of time even with them. So bad in fact, I'm suspicious that any positive comment and any review above 2 stars are the Dev's alt accounts.