![Kyuutarou Hoshino](https://img.flawlessfiles.com/_r/400x400/100/a4/6c/a46ce713f9326d9e280c5afae14cdb19/a46ce713f9326d9e280c5afae14cdb19.jpg)
Kyuutarou Hoshino
星野 九太郎
Hachirota Hoshino's younger brother, he also displays a strong interest in space travel, and hence spends most of his time attempting to construct a working, miniature rocket, so as to prove his talent in that particular field.
He maintains a shaky relationship with Hachirota, openly displaying disrespect for him. However he develops significantly throughout the series, especially after encountering Yuri Mihailokov.
He maintains a shaky relationship with Hachirota, openly displaying disrespect for him. However he develops significantly throughout the series, especially after encountering Yuri Mihailokov.
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Planetes
Supporting (Role) TV