Hey there, thank you very much, love the elevator as well, simple yet enganging! At this moment I only intend to write multiple routes for a few hand-picked LIs. The black bar means you have negative affection with the girl, while the red bar means it's positive. For Jane and Naomi, the visible purple bar represents domination/submission, and it only appears once you choose to delve into that specific route.
I’ve also added a question mark icon to the top of the character info screen. You can click it anytime to display the hint message (which normally appears only once the first time you open the info screen).
Hope that helps!