It has been about 30 years since “dungeons” were suddenly appeared in the modern world and “Seekers”, people who are adapted to dungeons, began to appear among the population.
One morning, Rikusou Daichi, a high school graduate and freelance worker, realizes that he has become a “seeker”. A “seeker” is a person with unique abilities such as level, status, and skills.
Daichi bikes to a nearby dungeon and explores his first dungeon through trial and error. This is the story of a young man who gradually gains power while raising his level, acquiring skills, and cashing in the magical stones obtained by defeating monsters.