Really loved this game. It's been a while since a RPG Maker project made me spend as much time as I did trying to find ALL the content.
It would be nice if there was an indicator to let the player know a characters content has been completed or not. It took me longer than I would like to admit to find Dirty Tongue and figure out how to wake Beverly. It was to then point that I started converting the game files and assets to dig through them for missing pieces.
The signs are nice, but NPC kinks could be handled better. Breadcrumb clues through NPC rooms like diaries, web search history, drawer/cabinet contents, statues, cave paintings, art, etc. to lead the player. Basically like Vampire's Gaze but more passive. It could even compound with VG depending on how the triggers are set up.
I did manage to soft lock several times at higher levels with Sakura, Paola, and Gallum. It might be worth it to rework Submit as a PC damaging DOT for 20%-25% of their HP.
I feel like there is so much opportunity for NPCs that want to summon the MC with different kinks and interests. I could make a list, but it feels like I've done enough client-side critiquing without a hand in the project to piss off any Dev.
I want to reiterate, I really enjoy this project. The concept and puzzle aspect are great. The art is well done, the dialogue isn't cringe, and the content is erotic.
I just want so much more.