Tensei Kizoku Kantei Skill de Nariagaru: Jakushou Ryouchi wo Uketsuidanode, Yuushuuna Jinzai wo Fuyashite Itara, Saikyou Ryouchi ni Natteta

It’s brains over brawn in this new isekai adventure! One day when leaving work, a salaryman dies and is reborn in another world as the weak child of the noble Louvent family. Using his “appraisal” skill, which lets him see the stats of others, young Ars Louvent recruits the best people to his side in order to turn his country around.
(Source: Kodansha USA)