9 books in series

ブルーピリオド [Blue Period]

ブルーピリオド [Blue Period] is a 9-book series with 9 released primary works first released in 2017 with contributions by Tsubasa Yamaguchi.

Blue Period Volume 1
Blue Period, Vol. 7
Blue Period, Vol. 8
Blue Period, tập 9
Blue Period, tập 10
Blue Period, Vol. 11
Cover 5

Blue Period 13

Blue Period, Vol. 14
ブルーピリオド 15