the great mage returns after 4000 years.

The worst student of Westroad Academy. The disgrace of the Blake
House. A new soul enters the body of Frey Blake, who couldn’t
overcome his miserable life and chose death instead. “What’s with
this body? I’ll have to work on tuning it from scratch.” The Great
Mage Lucas Traumen, with the body of Frey Blake, gains a chance at
revenge!

its a translation, you can also read its raw novel if you can read korean^_^.

Contact me on instagram:. yash_2805_