Good point!
I wasn't planning on adding a teacher as a possible mentor or character who's also in charge of the club because, well, I didn't take that into account, to be honest. 😅
But maybe there is someone who qualifies as a mentor who supports the club but in a hidden way, and that would be "Guardian", since his story goes beyond just being a security guard and has a closer relationship within the club before of a certain incident.
It's unlikely there'll be a romantic route like that, but it's possible to add it as an additional story, as in the Furry Visual Novel Homecoming Morenatsu with Ten's story.