Baku
バク
| Bakuバク | |
| Hair | Green, No Bangs, Slicked Back, Widow's Peak |
| Eyes | Garnet, Hosome |
| Body | Muscular, Pale, Slim, Teen |
| Clothes | Earrings, School Uniform |
| Personality | Hard Worker, Protective, Reserved |
| Role | Extraterrestrial, High School Student, Mecha Pilot |
| Visual novels | Main character - Captain Earth: Mind Labyrinth |
| Voiced by | Toyonaga Toshiyuki |