Hiroshi Umino

Hiroshi Umino a young stowaway who sneaks aboard a freighter in order to leave Earth. As the freighter is flying through space they are attacked by an Afressian ship. However, the train is saved by a mysterious and incredibly powerful spaceship and is able to make it to their destination, Gun Frontier a desert planet with a Western atmosphere, complete with saloons and bar fights. The boy meets up with another stowaway, an old man, and becomes friends with him. He tells the old man that he came to the planet in order to become a stronger individual. He gets himself a job in a bar with the roughest reputation on the planet to prove himself.

Emeraldas presents Hiroshi with the Cosmo Dragoon once owned by Tochiro.