First of all, I don't recommend playing this game at all, while the animations are good and plenty, the boring, tedious gameplay doesn't make up for maybe 2 or 3 hours of this terrible experience.
The navigation is outright awful, it loads slowly, rather confusing and do nothing but to drag your gameplay time on, despite going on the same direction on the map, the scenes all have their own angle that's different from each other.
"Why is that a problem?" You may ask, I'll tell you what's the problem, because it's a fucking point-and-click that's all about walking from point A to point B and so on. Since there's no fast travel in this game, it will take you minutes to learn which arrows take you to the place where you wanted, but my advice, why bother when they didn't? It's an intentional dickweed design after all.
There's a total of 14 days to play through, sometimes the students have a sex scene when you engage with them, sometimes they don't and you go through a quest or filter puzzle to get the day done. The quest are your typical point-and-click BS, go there, find this, go back, the NPC dialogue doesn't make it too engaging either.
Regarding the puzzles, they're mostly extremely easy but waste your time a bunch that doesn't really give you any sense of achievement, it's just to waste your time. The ordering minigame is for toddlers, the math game could take some thinking, but it's extremely stupid when you realize there are 2 pairs of the same numbers; while the drawing puzzles, oh boy, they can't even steal the minigame correctly. The detection for "drawing" is extremely poor, sometimes you have to draw at a certain area, sometimes it doesn't detect the entire click and drag. Almost as if it only detects my drawing when it feels like it, and it's extremely frustrating when you're stuck on a puzzle for something that's not even your fault.
Sure, you can opt outta it or even outright end the day without doing their crap. While I didn't really bother to check whether it has an effect on the game or not if you do a bad job, but whether it does or not, the whole quest and puzzle design bullcrap is fundamentally shit.
If you can skip the quest and puzzle that doesn't give you any scenes without consequences, then what's the point of doing them in the first place? But if they lock you outta potential scenes for skipping, then what's the point of providing a skip function? Making a good game is hard, but if you have to give an option that you obviously know is frustrating and unrewarding to get through, then why not just rework the whole thing altogether?
While the gallery may seem large, it's an illusion. Remember that different angle thing I talked about earlier? Yeah, a lot of them are just variations that are differ slightly in camera work from another scene, each angle is a scene to itself. Hell, sometimes the character poses are practically the same but with different characters slapped on it. Each day you get one scene that's about a 5 second loop, then you get to the minigame. It doesn't really get your boner fully engaged, what is this on-and-off blueballing?
It's almost like the game is meant to be played with a full gallery or a gallery unlocker, in that you have absolutely no desire to go through the main game to unlock anything, nor is it rewarding when you do playthrough the game with its sappy nonsense and unfulfilling gameplay.