I can gain 800% more EXP on the dungeon beneath my house

Uncover the secrets lurking 'Beneath my house lies a dungeon that let me gain 800% EXP' in this riveting fantasy tale. Embark on an action-packed adventure with the male protagonist as he explores the uncharted depths of the dungeon, facing off against hunters, goblins, and mythical beings. With themes of fantasy, shounen, and supernatural abilities, this novel delves into a world of magic, vengeance, and the power of gaining 800% more EXP in a hidden realm beneath the protagonist's own home.