ガンホー・オンライン・エンターテイメント
is a dungeon crawler role-playing video game developed for the PlayStation Vita portable video game console. It was developed jointly by Acquire and "Class of Heroes" developer ZeroDiv, and published by GungHo Online Entertainment. It was released in Japan on August 1, 2013, and in May 2014 in Europe and North America by Aksys Games.