- Kuroto Hiroshi
- Shimizu Gen
- Koizumi Tomohiko
- Akimori Mikoto
- Miyano Futaba
- Nakagawa Rin
- Fukumatsu Yuriko
- Hamaguchi Nao
- Kuroto Akane
- Kuroto Chika
- Takasaki Suzume
- Hirayama Kozue
- Nagareboshi Faculty
- Other Characters
Character Profile
Position — Headmaster
Age — 60
Height — 173cm
Weight — 67 kg
Blood Type — O
The old, kindly, all-knowing headmaster is rarely seen doing his job, leaving most tasks to the deputy headmistress. Suguru is open to most student suggestions, wanting his charges to have a balanced education. He is a descendent of the famed Maeda clan.
Character Profile
Position — Deputy Headmistress
Age — 29
Height — 175cm
Weight — 65 kg
Blood Type — AB
In contrast to the laid-back headmaster, Keiko is an austere and strict woman. She handles all the day to day tasks of running the school. Choshi Juri is her longtime best friend.
Character Profile
Position — School Nurse
Age — 43
Height — 160cm
Weight — 58 kg
Blood Type — A
Mikoto's mother Manami is the school nurse. A kind and nuturing woman, she and her missing husband Tetsuo are childhood friends with Kuroto Takeo & Ami and Fukumatsu Eiji. She and her daughter live next door to the Kuroto household.
Character Profile
Position — HERO Pilot Training
HERO — SCATHACH
Age — 38
Height — 165cm
Weight — 63 kg
Blood Type — B
Hotaru is one of the faculty charged with teaching students how to pilot the HERO. A former GRYM Wing Commander, she's trained in general mechanics and dabbled in robotics. She has a loud, booming laugh and a playful attitude. In addition to her son Tomohiko, she has a 10 year-old daughter, Honoka.
Character Profile
Position — History, 2-C Homeroom
Age — 23
Height — 160cm
Weight — 56 kg
Blood Type — A
Ginko is a young, fresh, and talented teacher. She has a great passion for her subject, History. She tends to be overenthusiatic and becomes emotionally invested in her students.
Character Profile
Position — Dormitory Landlady
Age — 29
Height — 175cm
Weight — 65 kg
Blood Type — A
Juri is normally sweet and doting, but can become demonic the moment a student breaks one of the dormitory's rules, particularly being in the other gender's tower after curfew. Nishimura Keiko is her longtime best friend.
Character Profile
Position — Chief HERO Technician
Age — ??
Height — 200cm
Weight — 136 kg
Blood Type — O
Volundr is a specialist in alien technology, having been instrumental in the design of the ESING Fusor. He works as a researcher for RHEOLI but is currently on contract serving as the Chief HERO Technician at Nagareboshi.