Chuya Koyama
Chuya Koyama's most popular book is 宇宙兄弟 1 with 7 saves and an average rating of 4.67.
Authorship percentage indicates primary author status - excluding introductions, forewards and other contributions.
Series
37 primary booksAuthored 97% 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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