#1GGZ / Houkai gakuen side storiesby Rinxxar.•26244A book about Ggz aka Houkai Gakuen side story, Enjoy :) Bad grammar, Lol. These aren't made by me, But Mihoyo itself! Yea, I've barely seen any Houkai Gakuen/GGZ book in...sidestoriesggzanimestuff+9 more