Immortal and Undying from the Ten Thousand Souls Banner

If you slack off on your path to immortality, you'll end up as brothers in the Ten Thousand Souls Banner!

But Lu Ling transmigrates to another world and, the moment he opens his eyes, is sucked into the Nine Nether Demon Venerable's Hundred-Billion Souls Banner. A hellish start from the start.

Fortunately, he binds to the Ten Thousand Souls Evolution System. Devouring vengeful spirits lets him level up, so aren't the countless vengeful spirits in that Hundred-Billion Souls Banner basically Lu Ling's all-you-can-eat buffet?

Until the day the Demon Venerable discovers him...