Many people call it a bugfest, but it really isn't. The main thing about this game is that it is very specific about what needs to be done, and falure to do everything exactly as it is supposed to be done causes it to not understand where you are in the story. It only softlocks if you do something that doesn't drive the story forward or do something that shouldn't be done. Your post dosen't even explain what route your are on or what steps you took to get where you are. If you know where you are at/which route, I suggest looking at my walkthrough I made a long time ago. Its likely something happened between three different reasons: A. You did something outside of expectations and softlocked. B. You are missing something, such as it told you to go to a place you can't find C. You are using an older version before the game's routes were finished.
If you wanna play an actual bugfest, the new game Dekarous made is fully unfunctional. Unlike this game, there is no way to get access to the H scenes and its barely playable even with cheats.
ridiculous. the dev's own patreon refers to it as "
a buggy mess". All I did was follow the story as instructed and make choices when prompted. the route I took was very basic, I only was able to choose one option for girls to go to the ball with (Gwen) because I hadn't even met the other girls. (although
during the ball I found one of the other girls, and the game then prompted me if I wanted to ask her to the ball, even though I was already attending with another girl (see also: buggy mess). I declined in the interest of not messing things up). I agreed to the prompt to kick Alyssa -> get castrated, and directly after that was the 'go to class B2' softlock.
Even if you chalk it up to 'older version with unfinished routes' (which I sincerely doubt), you don't instruct the player to go to a specific location to continue the story and then have nothing there. You instead instruct the player that they've reached the end of the currently available content, so I don't waste a half hour wandering around trying to figure out what the hell I'm supposed to do.
And I didn't see your walkthrough anyway because OP is outdated, hosting the wrong version and not linking to any walkthrough.