In this modern world, some people are born with special abilities that allow them to use magic and gain levels and skills. These individuals were given the title 'Noble'. And using their profound strength, Nobles enter dungeons to seek resources, treasures, and fame.

Xiao Yi, an 18-year-old newbie Noble decided to enter an F-Rank dungeon to support his struggling family and ended up being be trapped within that dungeon for over 10,000 years before he could return. However, because time flows differently in that specific dungeon, only a few weeks have passed since he entered the dungeon.