Trapped in a Dungeon for 25 Years

 "No matter how you look at him, he is undeniably a suspicious person." The suspicious man who was trapped in a Dungeon for 25 years becomes a Legend of the new era! A Dungeon suddenly appeared in the modern day. A young man named Nagano, who went missing while challenging it, survived for 25 years in the unexplored depths of humanity. Having devoured ferocious Monsters and gained the strongest body, he returned to a future Japan where Dungeon streaming is mandatory. Immediately, his overwhelming power that even surpasses disaster-class Monsters is streamed, making him join the ranks of Top explorers in an instant! Using his 25 years of accumulated experience as a weapon, Nagano rises to become a Legend of the new era! An exhilarating Dungeon hero story presented through high-refreshing Musou streaming begins!!