Exiled from the SSS-Rank Dungeon as a Knight with Only a Knife: Overcoming the Curse of Yggdrasil to Become the World's Strongest

Exiled from the SSS-Rank Dungeon as a Knight with Only a Knife: Overcoming the Curse of Yggdrasil to Become the World's Strongest
Hero, a white mage who belongs to an A-rank adventurer party, is expelled from the party as a useless person who cannot move after using Heal once. Only one dagger was handed over.
Left alone in the SSS rank dungeon, Labyrinth of Yggdrasil, he prepares for death… “You’re the first human to reach this far.” As if being guided by something, Hero meets N., a mysterious girl who lives in the lowest level of the dungeon, World Tree!