Let You Slay Demons, Not Turn You into a Monster

[Detective + Systemless + Not Holy Mother + Decisive Killing + Beauty] Introduction: Traveling through the troubled times of demons, Gu Xiyou became a trainee police officer in the streets of Leping County. During a night patrol, he actually fused with a devouring beast. Since then... Devour a three-level monster and achieve the refinement level! Devour a six-level monster and reach the realm of refining the gods! Devour an eighth-level monster and achieve the perfection of the No-moment Realm! After swallowing a great monster of the Fourteenth Realm, I am now invincible in the world! Gu Xiyou raised his head and looked at the clouds. People said that there was a Jade Mansion Immortal Palace above the sky. The sky was full of immortals and ferocious beasts were rampant. I wonder if I could devour a few of them. I came here with no other intention, just to look around...