コトヤマ
コトヤマ has written at least 6 books. Their most popular book is よふかしのうた 12 with 2 saves with an average rating of 4⭐.
Authorship percentage indicates primary author status - excluding introductions, forewards and other contributions.
Series
17 primary books14 released booksAuthored 43% of series
Call of the Night
Call of the Night is a 14-book series with 14 released primary works first released in 2019 with contributions by Kotoyama and コトヤマ.
