the basics because i'm mobile: he's kind of your typical older brother, nice guy, punny jokester and protective about most people. he's often standing up for other people even against his friends/family. he's also really stubborn and set in his ways and is a poor negotiator and compromiser so he gets his way a lot just from being a little insufferable about it. on top of that he's pretty opinionated and has had to remind himself to let people dislike the things he really loves. he's a teacher, so he's always trying to help people out, he's a bit of a know it all so he can bring some cool information/facts to the table or just annoy everyone even if he's not trying to be pompous about it he really is just a nerd that loves useless facts and history.