Give Me the System to Cultivate Immortality, but I Become the Devil

By chance, Pan Hongyi obtained the Nirvana Map that can inspire human potential and achieve immortality. And the artificial intelligence "Beta Cat" responsible for guidance and explanation. Props, magic weapons, skills, martial arts, magic, spirit generals... A game-like system, There are also various attributes that Pan Hongyi can add freely, and he can also learn various super powers! After becoming the hero and true master of the human world, Pan Hongyi did not feel happy—— Is this world really that beautiful? Are the ugliness, greed, and betrayal we have experienced before really worth protecting? How about... Establishing a new order and becoming a demon king? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.