After a mundane death, a salaryman reincarnates as Ars Louvent, a noble's son lacking magical or combat prowess but gifted with a unique power: Appraisal. In a realm plagued by corruption and imminent conflict, Ars utilizes his skill to assess individuals' strengths, potentials, and abilities. Amidst a landscape of revolts and militarization, he recognizes the necessity of assembling a capable team. A skilled foreigner facing persecution for swordsmanship, a magical slave harboring untapped potential, and a curious youth hungry for knowledge rally to Ars's cause. Together, they strive to establish the most formidable domain in a tumultuous kingdom.