After the adventurers are transported to another world, Arifureta Hajime and his party enter a dungeon. While most of the group is annihilated by a colossal monster, Hajime survives but is betrayed by Haruichi, who steals the party"s treasure and abandons him in a desolate cavern. Alone, Hajime discovers he has gained an extraordinary ability to absorb the powers of fallen enemies. He uses this skill to defeat a terrifying beast, earning the respect of the dungeon"s inhabitants and realizing he is not alone. Meanwhile, the surviving party members on the surface must confront their doubts and prepare for a return journey. As Hajime"s newfound power grows, he begins to understand that his path will be far from simple. The first five episodes establish a story of survival, betrayal, and unexpected heroism.
