Transmigrating as an Extra Third-Rate Villain

You thought being reincarnated as an extra-side character was bad? Imagine being thrown into the body of a villain who is disowned by his own family and discarded by the author. Now, thrust into a world where magic and modern technology collide, our protagonist must navigate the prestigious Celestial Academy while avoiding the deadly djinns that lurk in the shadows.

With only his knowledge of the original plot and a few unconventional items gathered from an antique shop, he must survive his new reality. Will he change his fate as a third-rate villain, or is he destined to be forgotten by the story's end?