I Was Given a System to Cultivate Immortality, Yet I Became the Demon King

By a stroke of fortune, Pan Hongyi obtains the Nirvana Heavenly Mechanism Diagram, which can unlock humanity's potential and guide people along the path of cultivation to immortality,

as well as an artificial intelligence called "Beta Cat," who guides him and explains how it all works.

Items, magical treasures, skills, martial arts, immortal techniques, spirit generals... a System that works like a game,

with attributes Pan Hongyi can freely assign points to, and all kinds of superpowers he can learn!

After becoming the hero of humanity and its true ruler, Pan Hongyi still doesn't feel happy.

Is this world really so wonderful? Are the ugliness, greed, and betrayal he's faced truly worth protecting?

Maybe... he should establish a new order and become a Demon King instead?

This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Do not imitate.