"Eh I can knock another one out before bed."
I have made a severe miscalculation.
This one's a bit of a tale of two halves for me, and I think that comes down to your skills as a writer/director: the atmosphere and tension is almost impeccable, with a few moments that legitimately unnerved me. For what appears to be your first effort, there's some seriously impressive horror direction here. On the other hand, the character writing is... a bit thin, and I think if you were able to develop this in addition to the atmosphere you'd have something really special.
Spoilers and such.
Touching on presentation first, there's not a ton going on visually, but what's there is effective enough for what you're trying to convey, especially considering jam constraints. I think all characters basically have two sprites, "casual" and "scared", but considering those are their primary states in the VN, I think it's fine. I actually really like the ghost design as well, and I think it was a good decision in this case introducing him in the daylight so the reader knows what they're afraid of before the haunt truly begins.
I don't want to harp on it too much, especially since purkka already said everything I wanted to about it, but whatever the vision with Taylor's mane was, I don't think it's working. Everyone else's hair looks consistent with the art style, but Taylor looks like someone took his sprite and then just did a MS Paint spray tool effect around his head. It's a bit distracting and I'm not sure why that decision was made.
In terms of sound, there are some moments, especially in the beginning, that are awkwardly quiet and could use some music, even if it's low volume and low intensity, to accentuate the presentation. Even if you cut it off once we get into spooky territory, it would make the overall aesthetic feel a bit more filled out in those scenes. With that said, the SFX chosen were excellent, and I have special praise for the buildup in the ritual scene. The steady addition of heartbeats with the breathing leading up to the droning was fantastic for building tension. There was one moment in Vic's chapter where "chase music" triggered a bit suddenly and I think this could have benefited from a similar steady escalation rather than being practically a jump scare, but otherwise, great work on the SFX.
Moving onto writing, as stated above, the character work definitely takes a back seat here compared to the tension and atmosphere, and while those things are well done, the lack of any real knowledge about who these people are does impact the reader's investment in their continued existence. I think that, for your strengths in setting the scene, dialogue is an area where you could improve. A lot of the character interactions in the intro (and some later, though there are fewer conversations in general for obvious reasons) feel a bit stilted and robotic, with lots of simple sentences that don't convey much personality or uniqueness.
Changing the syntax to make lines less direct would probably go a long way to making conversations feel less awkward. Like, "And you know, Vic and I are open. I thought we could fool around or something. You've seemed really depressed lately, I thought it would help cheer you up." seems formal, almost academic. There are ways you could play with the wording of this line to make Taylor seem hesitant, eager, regretful, horny, nervous, any emotion you want to show not only what his intent was, but how he feels about it.
There were also a few moments when the script seemed to vacillate between referring to Vic and June as "they/them" and "she/her" and I'm not sure if this was intended or not.
Regarding the overall plot, I thought it was good, especially for something so short. It's not going to set the world on fire (and personally I actually disagree with Fuze - I like that the ghost isn't a metaphor and is just a creepy stalker with supernatural powers) but as far as setting the backdrop for tension and some creepy scenes goes, I think it works.
Overall, definitely a few spots that could use improvement, but this was still a really impressive showing and I will be watching your career with great interest.