School for Wizards: Old Enough to Learn Magic

Roy Aveillam, the arrogant son of a notorious duke, is widely feared. But one heated clash with a rival classmate jolt something deep within –his memory of a past life returns, as does a burning desire: to master a craft and become someone extraordinary. Reincarnated at just eight years old, Roy awakens to the world's latent magic and vows to redefine himself –not just by his lineage, but by his will.

(Source: Titan Manga)