Ange Vierge was a trading card game, originally intended to serve as the core of a multimedia franchise. An animated adaptation aired Jul 10, 2016 to Sep 25, 2016. Development of the card game and wider property was discontinued in April of 2017, with the mobile title lingering until 2021.
One aspect to note is that Kadokawa, the franchise's publisher, held several card design contests over the course of the franchise's primary run. A number of the pieces from these contests are preserved on AIBooru, even when they were taken down from Pixiv and elsewhere.
