Easygoing Territory Defense by the Optimistic Lord

Okiraku Ryoushu no Tanoshii Ryouchi Bouei: Seisan-kei Majutsu de Na mo na Kimura wo Saikyou no Jousai Toshi ni

About

Easygoing Territory Defense by the Optimistic Lord is a oNA (web) anime that premiered in winter 2026, produced by NAZ.

About the production: the story comes from a light novel, there are 12 episodes of about 24 minutes and its current status is "finished".

Its main genres are adventure and fantasy, with themes such as Reincarnation, Male Protagonist, Kingdom Management and Magic.

On AniList, Easygoing Territory Defense by the Optimistic Lord has an average score of 68%, a good score, and appears on 40,916 users' lists.

Synopsis

Van, fourth son of a marquis, is just a toddler when he realizes he’s been reincarnated. Thanks to his literal lifetime of knowledge, he’s raised as a child prodigy—until his production magic manifests, and it’s the last thing his snooty mage family wants to see! His disappointed father banishes him to a podunk town on the verge of collapse, yet Van can only see the place’s potential. Can our hero’s bastion of battlements build a better life than battle magic ever could?! (Source: Crunchyroll)

Official synopsis from AniList.