Commissioned in death to save a world in peril, a tabletop RPG fanatic is reborn as a humble farm boy with the rulebook for the universe at his fingertips! Young Erich’s quest for an invincible character build...

Masuda Keima, a lazy high-school boy who prefers to laze around and avoid working, gets summoned as a dungeon monster by a girl avatar named "Dungeon Core No. 695" who is the dungeon core of the mighty one-room...