High schooler Hibiki Manabe is summoned into a monster-filled world and dropped alone into open grassland with nothing but Appraisal, a skill that looks useless next to Hero or Sage. Rescued by the elf adventurer Emalia Steinbart, he discovers his supposedly harmless power actually reads the true nature of anything he looks at, and starts building a party around abilities everyone else wrote off. Piecing together allies and skills no one respected, Hibiki works toward the one goal he actually cares about: finding a way back home.