Synopsis: Peerless Dismantler

Dungeons have inexplicably emerged across the globe. Individuals became "explorers" and ventured into these dungeons to gather resources that could only be obtained there! Kurose Sakuto was also on a quest for the elixir that could heal anything, aiming to save his childhood friend who was afflicted with an incurable illness. However, he receives a message from his companions informing him that he is no longer part of the team. In both the dungeon and the real world, he confronts demons and malevolent humans.