Nah, I don't play that path. I like all the female LIs who are submissive, masochistic, into bondage, humiliation, getting exhibited, taking risks, etc. Or who can be trained into that stuff. But they need to enjoy it, even though they suffer sometimes. There has to be some affection in the relationship, some reason to want to endure stuff to please the MC.
If the MC is just an asshole who doesn't care about the LIs, and the LIs are just suffering though all of it unhappily, it doesn't work for me. It just feels sad.
Anyhow, i can tell from the unlocked gallery that Sasha gets tswats from MCs belt in either the submissive path or the slave path, but I didn't get that scene even though Im in the submissive path (I think). I must have made a choice early on that locked me out of those scenes, and I'm wondering what it was.
Yep, definitely sounds like you should avoid the slave route. MC is an unmitigated dickhead to the girls on those routes. No affection, just MC being a dick. He does it quite abruptly as well for reasons that will be explained in the next update. You may have noticed him doing this on the sub route as well.
Anyway, the reason there are some scenes you won't have got there is because there's variation even within the same route. Using Sasha as an example, you mentioned that she was squirming in class. This means she was already collared when you got to that class, and also means that during her first punishment you either didn't use the dildo on her, or you didn't use it very much. So basically she got teased and didn't get the relief she needed last time, so it results in her being super horny in class. So the scenes you got will have taken that into account. Since the player doesn't actually have to punish her the first time, the other scenes are there to account for that possibility.
Her first punishment is only possible if you didn't sleep before going on the ghost hunt due to the circumstances that lead to it, but I wasn't going to make the one any only chance to get Sasha's sub or slave route be based on something like that, so the class scene functions as Sasha's final route selection where you'll get a chance to punish her no matter what. (If you didn't collar her before, she'll get in trouble for something else in class instead.)
It's just that if you've punished her previously you'll get different punishments. Some of the punishments use the same animations, but they're written and structured differently to match the circumstances.
The library scene is a romance exclusive.Though you don't technically have to be on her romance path at the tim since you can't yet since I'm defining that as entering an actual relationship with her, that scene basically won't trigger if you've collared her. On the sub route you can do everything leading up to that scene, but then she leaves instead of doing the scene.