Easygoing Territory Defense
Van remembers his past life as a Japanese salaryman at age two. When his Production Magic skill awakens at eight, his noble family calls it useless for combat and sends him to manage a tiny nameless village with a maid, a butler, a knight and a rescued slave. He starts building anyway. Japanese manga by Sou Akaike, illustrated by Maro Aoiro. Anime adaptation confirmed.
Read Easygoing Territory Defense by the Optimistic Lord manga in English, updated regularly. Also known as: お気楽領主の楽しい領地防衛 · Okiraku Ryoushu no Tanoshii Ryouchi Bouei · Fun Territory Defense by the Optimistic Lord