Okiraku Ryoushu no Tanoshii Ryouchi Bouei

Van, the fourth son of a marquis, remembers his past life at age two. Though initially a child prodigy, his "production magic" at age eight is deemed useless in a world valuing offensive abilities. Banished by his disappointed father to a remote, nameless village on the brink of collapse, Van is accompanied only by his maid, Till. The village has a meager population and lacks resources. Undeterred, Van embraces a quiet life, utilizing his past life knowledge and production magic to develop the village. He equips adventurers, constructs houses, and even builds a massive castle with ballistas for defense. This "useless" magic proves invaluable as the village transforms into a bustling city, showcasing Van's resourcefulness and determination against the odds. The anime follows Van's journey of domain management and the unexpected success of his unconventional approach.