A mysterious power that can influence the laws of the world. That is magic. For those who learn magic, there are ranks: Novice/Beginner, Apprentice, Intermediate, Advanced, Arch, and the peak of all magic arts- Sage. As someone who has researched magic for all his life, Leo dreams of becoming a Sage. However, his magic experiment goes wrong, and he is transmigrated/forcefully reincarnated into the body of a boy. Coincidentally he has the same name and appearance as him, just younger. With this new chance, can he reach the top?