I think one for Main Grounds, one for Classrooms, and one for other places outside the campus would be good. You don't want to have too many threads going or you're going to wind up with all the activity in a few of them while the rest just sit empty and that's kind of a waste.<br/><br/>In any case, Shizuru is a teacher and thus probably not going to hook up with any student. Or anyone, really. She's here to make the 'learning how to fight bad people' portion of the RP fun and interesting. She'd probably have a reputation as being stern but fair, a bit of a hardass, but the students that actually work hard in her class are far ahead of their peers. She's absurdly powerful but too 'meh' about everything to really care. She's only teaching because she thinks if the evil demons took over it would REALLY interrupt her drinking alone time.<br/><br/>Yumi's my student and she's kind of like Amelia from Slayers, if you get the reference. She's also totally smoking hot, so she's mostly here for the humor and the sexy fun times.