This VN is severely held back by the fact that it's a prologue to a larger story; it's hard to make a fair assessment of its characters or story. That said, the setup is decent. It's basically a mystery VN similar to the Ghost Stories anime or Scooby Doo, where a bunch of friends fuck around in a school doing spooky shit, and then they find out. The scene with Seiji and Marcus kinda throws off the pacing of the entire VN, as a VN that's otherwise about a ritual. Maybe it would stick out less in the full game, but I feel like its placement is a bit awkward. Marcus is still a cool character, and I do like him quite a bit. Seiji and Marcus are likable as well, albeit a bit forgettable. Jane, on the other hand, was a bit irritating. She reminds me of Saya from Tennis Ace, where she's basically the sole female friend of the friend group whose personality is supposed to be endearing, but ends up being annoying and rude. The difference between the two is that Saya is from a much longer VN where she has a few moments where she's sweeter and kinder, whereas Jane doesn't have any such moments. Some of the dialogue referencing modern slang can be grating at points. I don't know what about it annoys me, but I just didn't like it. The main twist is interesting, and I'm curious where it heads to, but right now it's just alright. Would recommend if you find the premise interesting.