
山口つばさ's most popular book is ブルーピリオド 2 with 24 saves and an average rating of 4.07.
Series
13 primary books12 released booksAuthored 83% of series
ブルーピリオド is a 12-book series with 13 released primary works first released in 2018 with contributions by Tsubasa Yamaguchi and 山口つばさ.