The Cinder Twins and their Journey to Save the World.The Cinder Twins will Save the World without Black or White.; Hai no Futago wa Shirokuro tsukezu ni Sekai wo Sukuimasu.; 灰の双子は白黒つけずに世界を救います。

14 years have passed since the "White Hero's" and the "Black Demon King's" decisive conflict during the "Black and White War". The world, now lacking of a Hero, was domineered by self-proclaimed "Heroes" who were showing off their power. However, some mysterious twins turn the tables around with their wisdom and ability...!