Some of the characters are cute and some of the poses are nice, but the animations are extremely basic, and this progress bar might make this the worst sleep touch sim I've ever played. Not to say it's the worst ever - there are some I haven't bothered with - but it's the worst I recall playing.
It's.
So.
Slow.
And you have to do it. You have to cum on each girl before you can put it inside her, then you have to deal with that same slow-ass progress bar again before you can cum, and when you do cum it's not really in her, it's just overlaying a lame jizz effect on the general area of her pussy.
At least in the second phase for each girl you get the option to go inside her, which fills your cum progress just barely noticeably faster than jacking off over her, but then it starts to wake her up and you have to either stop and wait or - and this is the speedrun strat - switch to masturbation while she goes back to sleep, then switch back to fucking for as long as you dare, then switch back to masturbation, and repeat; even doing this fastest method takes several minutes because of how slow the progress is. Did I mention that the speed at which you move the cursor doesn't seem to affect either the speed of your cum progress nor the girl's wake-up rate, but you have to move it otherwise it just goes down like nothing's happening, and there's no way to change your sensitivity, and the auto button functions like you're doing nothing at all? This is horrible.
This balance of slow progress plus the threat of failure if you rush it has been done much better in similar games where it actually adds to the excitement, and I don't know what they're doing right, but this game is definitely doing it wrong.
Other reviewers have said this isn't a problem for them, so it might be dependent on your system in some way - I've seen that before on a game I do like, but that game does many other things so much better than this one - for me, getting to the end of this was physically tiring and totally killed my mood. I like high school aged girls, sleep sex and incest, so I started this game wanting to cum. Now I probably couldn't get hard if I wanted to, and I don't want to.
This game sucks.