DyingBottle's manga / #action(145)

He learnt the strongest martial arts only to be killed and be reincarnated as a rural village officer as Master Baek, The One Hit Teacher! Star instructor, Master Baek . reading it at Asura Ch 65

A good read this one right here but the amount of female love interests is worrying

This is the tale of a boy dreaming about infinity as a human! Found abandoned in a stable, Shirone is the son of a hunter—and a peasant through and through. Despite hardships, he's a genius that manages to learn to read by himself and becomes obsessed with it. Brimming with genius talent, he goes to the city with his father, where he learns about magic— beginning his journey as an explosive rising star!

Ch 42

Ch 451