Yes, exactly! The cool thing about the scenarios we have, is that we can focus the action on small places and that in turn helps on character development and interactions.
For me, character profiles are VITAL to keep track of my people's history, actions and relationships, as well as to help me build a foundation to write stories with them, so that everybody feels unique and has their own nuances. And another one of the things that really peak my interest is videogame lore. I'm not an avid gamer, in fact I suck at them. I haven't owned a console for ages and my PS2 I bought last year hasn't gotten any use since I moved back in August. But videogame lore is super interesting to me. So in a sense, I share @SovietTiger's love of history, albeit directed more towards the fictional world. But of course, I wouldn't mind learning more about real life history, if only to make my world building improve slightly.
Anime also serves as a great source of inspiration. Funny enough, Kill La Kill and its analysis on fashion, fascism and the struggle for self-acceptance is a fantastic analysis worthy of exploring. A Youtuber named Michael Saba does fantastic essays analyzing fictional works such as Kill La Kill, NieR: Automata and MGSV with such attention to detail and bringing in parallelisms from real life to those fictional worlds. In the case of MGSV, the topic of proxy wars, the interest of former Japanese Prime Minister Shinzo Abe (RIP) to revoke Article 9 of the Constitution, and how heavily militarized American society has become to the point that armed officers have used violence to quell riots or civil movements. That doesn't just happen in left-leaning countries, people... But I went a bit off-topic there.
The point here is, world building can be a daunting task. But I've been exposed to a large amount of media in several different formats to have an idea of what works, what doesn't, and how I want to shape my characters as I analyze the work of other creators. And being that this is at its core, a sex game, I don't want to reduce my females to tools for masturbation or fantasizing. I believe most of them have their own agency, their own personality, and at this point, the sky is the limit. I'm preparing things that you might not expect, but that I am sure you will all enjoy.