Fire and Ice (Klance)
College student Lance McClain didn't ask for super cool ice powers, but that's what he got. Him and his friends, Hunk, Pidge, and Shiro from the hero alliance of Voltron, commanded by their leader Allura. Keith Kogane is a college student as well as a lone hero, who coincidentally appears at the scene with them frequently. Neither Lance, nor Keith are aware of who the other truly is, outside of their daily student lifestyles anyway.
(Alternatively: an excuse for me to describe Keith wearing thigh high boots)