Midoriko Sono

Serving as the disciplined leader of the Public Morals Committee at Ooarai Girls High School, this third-year student maintains strict order among her peers. As the commanding officer of Mallard Team, she operates a French Char B1 bis, managing roles as gunner, loader, and radio operator. While she is famous for her stern nature and frequent reprimands of Mako Reizei, she also harbors a notable irritation toward anyone using her nickname, Sodoko.