Hello! Thank you for your kind words, and I'm glad you enjoyed Qum. ^-^
I appreciate the enthusiasm that goes into all your questions, but many of those would be better suited for discussion with other players. I'll say that TLS is a fantasy world that doesn't use our terminology, so I haven't attached a specific label to Qum, but I definitely intended her to be a neurodivergent succubus.
You aren't the only one to enjoy Qum, so there's a lot of content for her, ranging from fanart to official comics to little stories. You can find these on Patreon, Discord, or the Steam art page - they're kind of scattered around, I'm afraid.