- 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
HERO — SIGURD
Class — 2-C
Birthday — June 20
Height — 178cm
Weight — 64kg
Blood Type — A
Hiroshi's greatest desire is to become a hero, to protect people from being exploited and taken advantage of. He has a tendency towards being hotheaded and naïve, jumping into the fray without forethought. He lives at home with his two sisters; their mother went missing during the 2040 invasion and their father is a workaholic who rarely comes home.
