Kizoku Tensei: Megumareta Umare kara Saikyou no Chikara wo Eru

Noah, the world's strongest six-year-old, holds the fortunate position of being the Thirteenth Prince of the emperor. Born with an infinite level cap and a cheat skill that allows him to add the abilities of those he commands to his own, he is unmatched. Reincarnated into a noble family, Noah thrives in an environment enriched with exceptional education and abundant resources, allowing his talents to blossom. However, behind the glamorous facade of aristocratic society lurks a world of conspiracies and power struggles.

(Source: Pony Canyon)