Tensei Shitara Dai Nana Ouji Dattanode, Kimamani Majutsu wo Kiwamemasu

The study of magic requires aptitude, effort, and the right bloodline. One sorcerer loved magic, despite lacking the bloodline and aptitude for it, and died wishing he’d spent more time studying in life. He reawakens as Lloyd, the seventh prince of the Kingdom of Saloum, with all his previous memories intact. Blessed with a strong magical bloodline, he uses his gifts to master the study of magic. (Source: Crunchyroll)