Okiraku Ryoushu no Tanoshii Ryouchi Bouei ~Seisan-kei Majutsu de Na mo na Kimura wo Saikyou no Jousai Toshi ni~
Alternative title: Easygoing Territory Defense by the Optimistic Lord: Production Magic Turns a Nameless Village into the Strongest Fortified City, Fun Territorial Defense of the Carefree Lord, Fun Territory Defense by the Optimistic Lord, Fun Territory Defense Of The Easy-going Lord ~the Nameless Village Is Made Into The Strongest Fortified City By Production Magic~, หนูน้อยเจ้าแคว้นกับแผนพิทักษ์เมือง, お気楽領主の楽しい領地防衛～生産系魔術で名もなき村を最強の城塞都市に～, 安闲领主的愉快领地防卫～以生产系魔术将无名小村打造成最强要塞都市～, 무사태평 영주의 즐거운 영지 방어,
Story Overview
After all his hard work, Van, a man reincarnated as an aristocratic boy, is regarded as a child genius. However, he is instantly elevated to the position of ruler of a frontier settlement after being identified as the possessor of "production magic." The sorcery that was deemed useless, however, is really extraordinary since, with the necessary elements, it can create anything! A tiny, impoverished village becomes a massive metropolis thanks to his wizardry and his knowledge of his former existence.