Midoriko is a third year student from Ooarai Girls High School, and the leader of the Public Morals Committee. She's the commander, 47mm gunner/loader and radio operator of Mallard Team and she operates a French Char B1 bis. Midoriko is well known for her strict personality, constantly reprimanding Mako Reizei for showing up late; she also becomes irritated whenever someone calls her by her nickname, Sodoko.