First off I want to say I love the game! I have enjoyed the sexy/lewd spin on the ghost hunting genre. Keep up the good work!
I do also have a little bit of feedback and thoughts I wanted to share...
-Much like with early Phasmophobia, the thermometer is just OP. It is far to easy to find the ghost room by simply running through the maps with it in your inventory. I found it more interesting when I would take longer in the truck, usually performing K.T.E with Luna, then entering and finding lights off, objects tossed, etc and getting that brief excitement and wonder trying to figure which room the ghost is in before remembering I have a thermo. Maybe a slower changing of the temperature, have the breaker off by default (since it makes everything cold), and/or add in some false positives.
-Bigger maps need some more incentive. I know there are puzzles here and there but once you are finished with them or stuck for the time being, there is no real reason to go back to them. Every case is 400 for getting all objectives completed. Take the city map for example, the map can be slightly confusing and the hidings spots are few and far between making the map innately harder only to get 400 while you could just rerun Luna's house and have plenty of safe spots and simpler map and get the same amount. Maybe increase the amount of money made slightly for larger and/or complex maps.
-You can discover the ghost too quickly sometimes. Yes I know this is a lewd & sexy game but sometimes the evidence/quirks just gets dumped on you very quickly while you are only at 10-15% fear, causing you to have to wait for your fear to reach hunting ranges. Maybe you could reduce the speed of gaining evidence somehow, like a timer that prevents evidence being shown if some evidence was recently created somewhere. Could also look into adding a chance for evidence to appear.
*I will say I had great time on a run on in the Sunflower City Streets where the Bloody Mariam did only 2 mirror apparitions, one super early when I was doing a map change and one after I finally figured out the ghost, and had maybe a bugged spree of camera interactions because none of the pictures showed the Bloody Mariam after image by the camera. I was confused throughout the entire mission but intrigued because the evidence wasn't appearing and the quirks weren't happening.
-Fear gain is slow with nothing to do. I frequently found myself just standing in the ghost room after getting evidence quickly and/or finding a ghost quirk immediately. I would be doing something else on my phone while waiting on the fear meter. I know there are puzzles but once you finish them, there isn't anything really to do in the down time if you get all the evidence early. Maybe add in something dynamically that we need to hunt down (e.g the bone in Phasmophobia) that could be hidden in things we could inspect/interact with. You could also maybe look into increasing the fear gain slightly or having specific things greatly increase fear gain, like seeing a mirror apparition or other event
-The shop needs some sort of always visible counters for items. I may be dumb on this one but I really think that when buying items there should be a " X/X " counter below or above each of the items. Right now you have to purchase an item in order to see the current number you have.
-This is just a silly thought, but maybe more variety in the UV images? Like kissy lip marks, butt prints, boob prints, or suspicious splatter patterns?
Minor bugs I encountered...
-Pressing the "Use Item" button with Audio Box in hand will keep the image at the top active even after dropping the Audio Box.
-After doing the tutorial mission from a new game, you will sometimes have negative items requiring you to purchase up to 3 of an item to even get 1 usable item. (This specifically happened with the Incense Sticks for me as I had -3/4 on my first mission after the tutorial)
-Cameras show up in reverse order of being placed on the CCTV. The first placed camera was camera 4 for me with the fourth placed camera being camera 1.
-On the Sunflower City Streets map, you are not blocked from re-entering the van during a hunt.