Arifureta: From Commonplace to World's Strongest - Rebellion Soul

Hajime Nagumo is transported to a fantasy world along with his classmates — the same classmates who bully him relentlessly. While every other student is granted combat-ready cheat abilities, Hajime's only gift is a Synergist ability that appears to be completely useless. Weakest in the class even in another world, he falls to the bottom of a dungeon called the Abyss through an act of deliberate betrayal. In the depths, he meets a vampire named Yue whose fate has been as isolated as his own. Together, they forge a pact: protect each other, surpass the entire world, unstoppable. The story of the weakest student and the hidden vampire begins at the bottom.