Guilty Crown: The Lost Kingdom

Guilty Crown: The Lost Kingdom  was a fan fiction written by Ford1114,  and based on the Guilty Crown and PMMM franchise, w ith under the work of Kanius's Digimon Fusion Kai and YuYuGiDigiMoon.

The setting is also a stand-alone AU of a notorious fanfic franchise called YuYuGiDigiMoon, in which the outbreak of Lost Christmas (taking place in December 2012 instead of 2028 to coincide real-life predictions) wiped out most of Japan’s heroes. This serves as a background and new plot twists unlike the show for the characters to interact in dark times.