Arifureta: From Commonplace to World's Strongest (2019)

S1E1 The Monster of the Abyss

Hajime Nagumo, along with his entire class, is unexpectedly transported to a different realm, where he quickly realizes he is severely lacking in strength. As he navigates this unfamiliar world, he becomes vulnerable to the challenges posed by the treacherous Labyrinth that surrounds him.