Approximately thirty years have passed since "dungeons" suddenly appeared in the modern world, and at the same time, "Seekers," dungeon-compatible individuals, began to emerge among the people. Daichi Rokusho, an unemployed high school graduate and single freeter, one morning realizes he has become a "Seeker." Seekers are individuals with special abilities, possessing levels, stats, and skills. Daichi heads to a nearby dungeon by bicycle and explores it for the first time, experimenting as he goes. This is a story of a young man who gradually gains strength by leveling up, acquiring skills, and exchanging the magic stones he obtains from defeating monsters for money. Note: It essentially becomes an isekai fantasy from a certain point onward. Book volume 4 will be released on July 30, 2024! Volumes 1-3 are also on sale. The publisher is KADOKAWA (Famitsu Bunko label), and the illustrations are by tef-sensei. The cover art is available on the activity report. It is currently being serialized as a comic on Kadokawa Comic Aneo.