Maken Tanyashi ni Naritakute!

A young human named Eiji, gained great sword skills, and as a result the title of "hero" has been bestowed upon him. However, the Sacred Sword, the only weapon that can defeat monsters, is being monopolized by the temple of Seirin, as well as keeping the warriors under their control... Eiji, disgusted by this situation, decides to reject his role as a hero and become an apprentice to the dwarves with the goal of creating a sword that will surpass the Sacred Sword, and make the world a place where everyone does not have to fear the monsters...