For starters, the characterization of the cast is very nice! I didn't expect to take as much of a liking to Lucas as I did and the other members are a delight as well.
The writing while good had some typos I see throughout nothing huge that can't be fixed with a quick patch.
The choice of music also really helped the scenes feel more emotional your composer is definitely doing their job well.
The art is all very nicely done as to be expected from Shuik and everyone is drawn in a unique style that fits their personality.
The setting while a bit "cliche" (though to be honest every setting is) the horror and the story revolving around the diary and the mystery of the events behind it are very intriguing and I'm already crafting theories in my head.
All in all I'll be sure to give it a solid 5 stars when I upvote it. It has enough of a solid ground to to become something great and you're team made a good first impression can't wait to read more.
Also if you're looking for thoughts on the NSFW proposal I've seen mentioned I'd say I certainly wouldn't say no to a option to eventually get frisky with the love interests but even if it never happens the story is solid as is and will be enjoyable with or without spicy content.
TL;DR I really like your VN