If you're playing on public version, it should just be post-story hscenes. You just level her up to unlock them. If you're on the latest version, it could be the 2 threesome scenes she's involved in
no, you level her up by taking them on dates. If you view the girls' ID card, you can see their level. Levelling them unlocks more outfits, post-story hscenes, and increases the amount of money they earn for the company
