[Machine Translation] Fight! Fight with the fire that will "incinerate" everything! A journey through the world after the collapse of civilization in this action-packed battle game! On that day, the sky broke and the world collapsed. Nagatsuki Nekoha, who was directly under the broken sky, fainted, and when he next came to, five years had passed. In a world where civilization has collapsed and changed, monsters called "deformities" roam the streets and attack humans, and Nagizuki is attacked as well. At that moment, an unfamiliar voice speaks to her from inside her head... Use it to your heart's content. Use my black flame to burn everything to the ground! The world's cutest boy travels through a world after civilization collapses in this action story of a battle with otherworldly powers!