i think nisha and corrigan would get along reeeeeaaaally well, as firecracker quidditch maniacs with a blind spot for rules. corrigan would be pretty in awe of her quidditch prowess and knowledge and try to emulate her a little bit. :x if you would prefer over-spirited rivals, though, i can also throw you that~

as for casey, HELLO DANCE BABY. since xavier was in his d&d group he's "looking out" for nisha but ummm he also doesn't really know what that means. ¯\_(ツ)_/¯