Ok, so having a deceptively original asset style (the sprites are original), the menus are mostly the default stuff with swords and shields and whatnot so yeah that immersion is broken.
The sound step effects are a bit strange when moving around (this is akin to using the basic default move sound effect). I dunno, gets a bit distracting.
Since you mentioned this game is buggy, I'll keep this fair and say that there's a lot of missing events here and there, a lack of direction, an interesting premise but overall a bit of a slog to go through.
There's a lot of reading in this game and its not necessarily a good thing. Its a bit of a chore. The puzzle aspects are also kinda confusing due to not being able to figure out how to progress through the story. And by the time I've reached 18th hour and got bleeded, I got sent to black screen and the event didn't tint screen it properly or something.
So, this game definitely feels like it could have been ironed out some more, the proof of concept is interesting but a lack of proper direction and actual polish keeps it from garnering my interest any further.