Marimo Jinguuji

Nationality: Japanese
Affiliation: Hakuryo Hiiragi, United Nations Army Yokohama Base, IJA/MDF 1st Battalion
Rank: Sergeant, Major
TSF: Type-77 Gekishin, Type-94 Shiranui

English teacher at Hakuryo and class 3-B's homeroom teacher, called "Marimo-chan" by Takeru. She can be ditzy and a bit of a nag, but has a gentle personality. Popular with both boys and girls, Marimo is loved by all of her students.

She became a teacher along with her best friend from Hakuryo Hiiragi, Yuuko. She's always been somewhat of Yuuko's plaything as the subject of her jokes and schemes, and she often makes fun of how familiar Takeru treats Marimo.

In Alternative, Marimo is an instructor for the UN at Yokohama Base. Extremely strict and serious in hopes that the people she teaches don't die, she gained nicknames like "Mad Dog" and "Demon Sergeant" for how she treated her students. Under the tough exterior, she cares for her students all the same. She once had a dream to become a teacher, but when the BETA came closer and Japan's became obsessed with military based education, she dropped out of college to become a soldier. Eventually, she decided proper education was the essential for pilots to survive, and became an instructor at her old classmate and best friend Professor Kouzuki's recommendation, Yokohama Base.