Okay, I finally managed to finish this game and here are my thoughts.
I heard bad things about the story, but honestly, I don't think it was a bad story. It definitely isn't my cup of tea and it didn't feel like a horror story/game, but some character were fun and mythology was incorporated pretty well into the game. The story felt quite compressed, though, but considering this is a game jam, I think you did a good job (I guess you probably had a more complex history in mind, with a lot of character development)
Mixing visual novel elements with uhhh...mini games I guess? was quite nice and gave the game more personality.
Gustav was quite cliché but he ended up being one of the best things about the game hahhahaa, I really liked that. Sometimes, these type of characters are really fun and enjoyable, despite how cliché/stereotypical they might be
Now, what I think was the best thing about the game is no doubt the visuals. Specifically, the character art. I really liked it, the character artist did an amazing job and I love their art style.
The theme implementation was good, not a lot to say about that.
My main complaint is obviously the lack of horror. At times I felt like this was submitted to the wrong jam, although it can also be argued that horror is subjective, so this might indeed contain many horror elements that didn't feel like horror elements to me because I'm used to more stereotypical/classic horror tropes.
Anyway. This game definitely isn't for me... but it was by no means a bad experience, and I'm impressed by the character art style. Congratulate the character artist on my behalf