小山宙哉
小山宙哉 has written at least 17 books. Their most popular book is 宇宙兄弟 1 with 5 saves with an average rating of 4.67⭐.
Authorship percentage indicates primary author status - excluding introductions, forewards and other contributions.
Series
37 primary booksAuthored 46% of series
宇宙兄弟 / Space Brothers
宇宙兄弟 / Space Brothers is a 37-book series with 37 released primary works first released in 2008 with contributions by Chuya Koyama and 小山宙哉.
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