The World's Fastest Level Up (Manga) Vol. 1 (manga)

Years have passed since dungeons popped up all around the world. When dedicated adventurer Amane Rin awakens to a unique skill called Dungeon Teleporting, he finds he no longer needs to abide by the rules of dungeon diving like everyone else. Follow Rin's journey to become the strongest adventurer in the world - at the fastest speed possible!