The Centennial Killer Gets the Immortal Cultivation System

He is the world's number one killer and is ordered to return to ordinary life to accept a mission. Already invincible, he activated the Immortal Cultivation System, which was great, and he immediately took on all the tasks on the list! All the beauties and old witches are in the bag. What? Someone actually has a system? It's okay, I am still afraid of them in the Immortal Cultivation System? Damn it! This man can actually summon monsters? System: It's a small problem, I'll fix it in seconds! Damn it! This man can actually breathe fire? System: It's a small problem, I'll fix it in seconds! Damn it! This person can actually transform? System: It's a small problem, I'll fix it in seconds! Damn it! This person actually changes other people's systems! System: Little... Fuck! Why don't you run? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.