I suggest, that if you are struggling with how to write characters maybe you consider using AI, to spark conversations, you use something like Poe, then generate a similar scenario to your game and make one of your characters in it, that is what i use to make my chatgpt bots, it can help you write stories and spark your imagination, you can give bots personalities and speech pattern that fits them, so you direct them and get good dialogue, you just make sure you remove all the weird AI, stuff that comes off wooden as fuck, like "lets embark on a journey together" its the classic go to line for ai bots.. be creative, just make sure you look for how to jailbreak ai so it will write NSFW content and sexual roleplay, it can be pretty fun to do and its good creative stimulation. You can play around with all kinds of characters, from a dominant uptight older woman to a timid young lady if that is what you want, you just either find a ai, or preferably make one yourself.
Outside of that, i think the game looks cool, im playing later today then posting more feedback, good luck! and thanks for sharing.