8-sai kara Hajimeru Mahougaku

Roy Aveillam, from a notorious ducal family, is feared by everyone around him for his irreverent and arrogant attitude. However, in the midst of the turmoil with his classmate Van, he regains his "memory of his previous life" and his "desire!" It was a wish to "master something and become special." And then, Roy has an even more special encounter. He meets someone who has magic in this world! At the age of 8, he awakens to "magic" and aims to turn his life around with the help of his many encounters!

(Source: Overlap, translated)