As a Reincarnated Aristocrat, I'll Use My Appraisal Skill to Rise in the World 2 (manga)

After his uneventful life gets cut short, a salaryman is reborn in another world as the child aristocrat Ars Louvent. Using his unique "appraisal" skill, Ars discovers and recruits a fledgling swordsman named Rietz and a girl named Charlotte with a gift for magic. However, Ars's small domain will need even more talented people if it is to survive—which is why a shy, young bookworm with an extraordinary intellect might be just what Ars is looking for!

Volume 2 of the As a Reincarnated Aristocrat, I'll Use My Appraisal Skill to Rise in the World manga series by Natsumi Inoue.