Hajime is the main character in the manga and is in junior high school. He looks just like the character Tetsurō Hoshino from Galaxy Express 999, only wearing a gakuran. He has a keen interest in space, and is somewhat infatuated with Yayoi. While he doesn’t get good grades in school, he is a very honest and kind person. At first he wants revenge on the people who are responsible for his parents’ deaths, but he decides it is fruitless to hold a grudge and abandons that plan.