10 years ago, a mysterious, laid-back creature named Danpon from another world created dungeons, which became a part of everyday life in Japan. High school student Ichino Yasuhiro is invited by his friends to visit a dungeon in Osaka Umeda Station. However, the place is overcrowded, making it impossible to properly defeat monsters. All he manages to get is a small amount of experience and a can of unknown contents called D-can, which he cannot figure out how to open. Back at home, while wishing for his own personal dungeon, the D-can suddenly opens. Inside is a candy that allows him to learn skills. Yasuhiro learns the skills from the candy and begins to delve into dungeons to become the strongest dungeon explorer. * Dungeon streaming elements are planned from Chapter 3. * From May 7, 2024, to May 27, 2024, and from May 31, 2024, to June 12, 2024, it ranked 1st in the daily low-fantasy ranking. * From May 11, 2024, to June 15, 2024, it ranked 1st in the weekly low-fantasy ranking. * From May 19, 2024, to July 2, 2024, it ranked 1st in the monthly low-fantasy ranking. * From June 22, 2024, to August 15, 2024, it ranked 1st in the quarterly low-fantasy ranking. * From July 16, 2024, to September 28, 2024, it ranked 1st in the annual low-fantasy ranking.