The Dark Wizard's Rise!

After transmigrating into a brutal medieval world of knights and dark magic, a boy destined to be sold by traffickers survives by joining the very gang that captured him. Discovering both a talent for wizardry and a powerful mental library that lets him master spells at terrifying speed, he rises from street criminal to feared dark wizard. At the infamous Bone Spire Academy, where necromancy and soul magic reign, his ruthless climb for power begins. — Description from novelcodex.orgFull novel: The Dark Wizard's Rise! — read the rest free on N​o⁠v​e⁠l​C⁠o​d⁠e​x⁠.​o⁠r​g⁠