Seoyoung awakens in a world that has been devastated by an unknown catastrophe, unable to remember his past. Along the way, he meets Younghyun, a powerful esper capable of summoning and controlling flames. The two of them journey through the ruins of a city, hoping to uncover Seoyoung’s lost memories. However, Younghyun seems to know more than he’s letting on about their surroundings, and Seoyoung has no other allies to turn to. Will they be able to rely on each other in this time of darkness?