A very enjoyable start! I wouldn't have known it was your first attempt at making a visual novel if you hadn't said so - everything came together so well, from the characters, their interactions, the setting and setup of the plot. I like the horror vibes and am really looking forward to Rina and Nishida's relationship development! (I already love Nishida so much, as a big fan of the megakuu, aka megane/kuudere overlap haha)