Legend of the Arc Magus. From Vol. 12 LOTAM

An Arch Magus dies, only to find himself in the body of a young man in a medieval Kingdom. He finds out that he is the second son of a Duke, exiled to a desolated town by his own family. Shackled by the notorious reputation of his new shell, he tries his best to develop his domain, implementing new policies and innovations, leading his subjects to prosperity. In this world where magic is undeveloped, he shall once again pave a new path.

(Novel by Michael Sisa, please support the author by purchasing authentic copy of the book. Posted for personal reading only)

Author Book Links:
https://www.goodreads .com/series/275865-legend-of-the-arch-magus

If you want to catch up on the latest chapters of volume 12, head to author's patreon page:
www.patreon .com/crazyblackchili