・日本国内ファン若年化と海外ファン増加が生じ、大きく変化した東方ファンネットワークの「いま」をデータで見てゆきましょう。五か国語併記なので日本語が苦手な方でも読めます。 ・Let's take a look at the current state of Touhou fan networks, which have undergone significant changes due to the rejuvenation of domestic fans and the increase of international fans, using data. This book is written in five languages (JAPANESE, E NGLISHI, simplified CHINESE , traditional CHINESE , KOREAN hangul).