World's Fastest Level Up (Light Novel) Vol. 3

Now, with a new opportunity to keep levelling up in hand, Rin’s back at it, dungeon diving and surpassing all expectations. However, horrors lurk in the dungeons! Will Rin’s Dungeon Teleportation and skills be enough to unravel the mysteries within?Series Overview: Years have passed since dungeons sprung up around the world. When adventurer Amane Rin awakens to a unique skill called “Dungeon Teleporting,” the rules can’t touch him anymore. This is the tale of how he races to become the world’s strongest (and fastest-progressing) adventurer!