Noriji Amagi, a high school student who aims to become a professional explorer in search of his parents who are missing in the dungeon. Noriji, who accompanied him to explore the guild “Chariot” as a part-time job as a backpacker, woke up to an unknown ability by experiencing a spectacular “hell” in the depths of the dungeon …? A new royal road, modern dungeon fantasy where an unskilled boy awakens to become the strongest and best explorer !!