7 books in series
Area D - Inou Ryouiki
Area D - Inou Ryouiki is a 7-book series with 7 released primary works first released in 2012 with contributions by Kyōichi Nanatsuki and Kyouichi Nanatsuki.
Area D - Inou Ryouiki is a 7-book series with 7 released primary works first released in 2012 with contributions by Kyōichi Nanatsuki and Kyouichi Nanatsuki.