After traveling through time and becoming the most useless apprentice in the Mage Tower, Chu Lan was sacrificed to the undead at the beginning - just because everyone was waiting to see him fail to summon and die from the backlash.
But they didn't know that he was bound to the forbidden summoning system. When someone else summons a skeleton warrior, the skeleton he summons... Will evolve on its own and can also draw SSR.
When the Judgment Knights breached the Mage Tower, Chu Lan tore up his disguise, and the shadows of the Skeleton King, the Ghost King, and the Lich King emerged from behind. He flicked the undead fire on his fingertips: "I'm sorry, you are surrounded by me alone."
