Undead Mage from a Cell Novel

Gu Xi faces an unexpected crisis: imprisoned in a dungeon cell after a brutal attack. With the class change deadline approaching, failure looms if he doesn't act immediately. His only option is to pursue the Undead Mage path and harness forbidden power before time runs out.

A spectral voice echoes through the darkness. "You called for me, brother?"

"I am Gu Xi," he replies, desperation sharpening his words. "I seek to forge a pact with you—grant me your strength, and together we'll achieve the Undead Mage transformation."