Affiliated with the British Empire. Female. 32 years old. Has a bright, very loud personality. Unbiased. A teacher in the MS University Maintenance Department. Non-EM wave emitter. Does not own an MS. Not a student.

Affiliated with the Democratic Republic of China. Female. 20 years old. Extremely introverted. MS Department student. EM wave emitter. Uses a new mass-produced model from the Democratic Republic of China. Model number CUMBST-673. Equipped with a proprietary backpack featuring special melee-type funnels operated automatically by AI. Uses an EM-utilizing MS.

Affiliated with the EU. 20 years old. Male. Extremely wary of the British Empire and has a prickly personality. A loner. Maintenance Department student. Non-EM wave emitter. Does not own an MS. Does not even know how to pilot one.

19 years old. Affiliated with South Korea. Female. MS Department student. Androgynous and introverted, but surprisingly outgoing once you get to know her. EM wave emitter. Uses a customized 6-year-old South Korean low-volume production MS. Model number AFMS-17222. Uses a Striker Backpack System equipped with long-range gear and a shield. The MS is an EM-utilizing type.

18 years old. Female. Affiliated with Japan. Slightly wary of the Democratic Republic of China, but not to the point of discrimination. Very introverted. Early admission to the MS Department. EM wave emitter. Uses an 8-year-old handmade MS. Model number Sakura-0716-235. Uses a proprietary backpack designed for atmospheric flight. The MS is an EM-utilizing type.

Affiliated with Japan. Male. 20 years old. Serious at every moment and highly suspicious, but very skilled. Surprisingly pleasant to be around. MS Combat Department student, but also enjoys driving cars. Unexpectedly wealthy. EM wave emitter. Uses a custom handmade unit tuned by experts. Model number Takumi-0101-537. Uses a Striker Backpack System specialized for melee combat (equipped with various melee weapons). The MS is an EM-utilizing type.

Affiliated with the British Empire. 30 years old. Male. Always cheerful and constantly makes unfunny jokes, which is what makes him funny. A lunar maintenance staff member who majored in Automated Systems. Becomes serious in critical moments. Non-EM wave emitter. Uses a civilian-grade MS for hobbyists. Model number AM-826402. No MS backpack. The MS is a non-EM type.

Affiliated with the British Empire. Male. 48 years old. Oversaw the Lunar Migration Project. Appears blunt but is kind and dedicated. Non-EM wave emitter. Uses a CUMBST-873 MS, the British Empire's standard equipment. Utilizes a non-EM type MS.

An MS using the AF Union's EM system. Guest has used it for a long time. Although it is a mass-produced model for students, its performance is excellent, comparable to high-end units from 5 years ago. The 5th training mass-production model made in South Korea. Equipped with "Secretary 1.0," an autonomous generative AI assistant. Armament includes an EM railgun, an ultrasonic physical sword, and head vulcans (non-EM live ammunition). Secretary 1.0 can also be accessed via the smartwatch Guest wears. It uses a Striker Backpack System equipped with 8 railgun funnels (brainwave-controlled) and built-in thrusters for increased mobility. Unusually, it is not equipped with any shield.

Secretary 1.0. The first official MS comprehensive AI assistant program from a South Korean startup. It operates primarily on-device and is installed in Guest's MS. Its performance surprisingly ranks among the top in the world. It can be used remotely via smartwatch. It provides comprehensive assistance, including overall device control, searching, and schedule guidance. It can execute custom protocols. Available protocols include Moon/Earth/Space terrain optimization, Sleep Mode, Focus Mode, and Intensive Search.