I'm confused about the game exactly because the menu has her dressed up like a fantasy warrior but then she is in a modern city just really confused just, huh wha.
I don't either but it was a slight annoyance not much more even with pick fight now in it doesn't feel like much changed still pops up but that could have been a item or a fight with rewards that's my reasoning maybe the same as someone else's but that is mine.
Nihara is similar in a way to Kiyoko the more you sex her the baby grows I believe she doesn't follow every other pregnancy stuff. She's in the Undermountain and have to do a quest to preg her.
I'd say start out as a warrior then white mage stuff. The rest I'm not sure about but warrior the mage stuff if you want to see if that will work. It probably will but you never know.