Boo (ブゥ) is one of the youngest soldiers in the army.
Boo is very timid, freezing up in the most important times, often relying on Nabuca to do all of the work when it gets tough. Like Nabuca, the reason he fights is so he can return home after the war.
Boo has very short hair, a flower-like hair style at the top, and dark eyes.
Boo is first shown chasing after Shu. After encountering Shu, Boo freezes in place, refusing to fire the gun, letting Shu get away. When Shu is thrown into prison for the second time, Boo helps Shu escape by giving him his wooden katana.