人外剣士は力に魅せられ裏迷宮を攻略す～化け物扱いされた元冒険者は、自分だけが知る迷宮で人目を気にせず無双する～

Synopsis

Jin is an adventurer so overwhelmingly strong that he can cut down a three-headed dragon with a single slash! Though he craves more power, he fears that becoming any stronger would turn him into a monster... so he retires from adventuring and returns to his hometown café, in Dagar! However, in the mountains behind his family home lies a dungeon said to grant one’s deepest desires...!? Together with Shuna, a runaway saint who suddenly barges into his life, the power-hungry former adventurer sets out to conquer the dangerous, monster-filled dungeon! And after the battles, they savor exquisite dungeon cuisine made from the monsters they defeat—!? ___ [Original Web Novel](https://kakuyomu.jp/works/16818093079302911888)