This is a very trivial observation, but all members of the Student Government, except Harumi Mineo, have the kanji character from "mamo-ru" (守る) in their family names (pronounced "mori" in this case): Moriyama, Moriguchi, Tsumori, Morihata. The only other person with "mamo/mori" is the head of Sanemori clan, Momoe.