Who is Min from Geography Club and what is their importance?

Min is one of Russel's best friends. She is one of the smartest people in school. It turns out that Min is also bisexual, but has been keeping this a secret from Gunnar, Russel and the rest of the school for the past three years. Min met a girl at Girl Scout camp that she has been secretly dating by the name of Terese. Min is also one of the founding members of the Geography Club and later, the gay-straight-bisexual alliance.