Supreme Sign-in: I Cultivate 10,000X faster

[Supreme Sign-in system{LOCKED}] [You can’t sign-in yet, wait 19yrs, 00 Months, 00 Days, 00 Hours, 00 Minutes, 00 Seconds] Such was the message that first appeared before Kahn as he was being dragged out of the womb, before he even made his first cry. The son of a billionaire back on earth, living his best life with riches, and a high-paying job most could only dream about, suddenly finding himself in a cultivation world. Just like the NovelPhoenix characters he read about, he did get a golden finger, a system… except it was locked, and he couldn’t even use it. Because of this, he lived life as a regular human, unable to cultivate due to his dried up dantian. However, tragedy struck. At the age of fourteen, the sect his family belonged to was taken over by a ruthless demonic sect. His parents were killed, and he and his younger sister were captured and forced into slavery. For the next five years, he endured endless humiliation, abuse, and despair… all while waiting for the countdown that never seemed to end. Until one day… [Supreme Sign-in System unlocked.] [Would you like to sign in?] [Yes.] [Reincarnation event Signed-in!] [Reward Obtained: Berserk Warrior Physique (Earth Grade)] [10,000× Reward Multiplier Activated!] [New Sign-in Reward: Heaven-Earth Devouring Physique (Supreme Grade).] After waiting for a long nineteen years, he finally unlocked his golden finger… a special attribute that multiplied his sign-in rewards up to 10,000 times! From supreme physiques and peerless cultivation techniques to legendary treasures, nothing was beyond his reach. The slave the world looked down upon was about to begin a journey that would shake the heavens themselves. But as Kahn delves deeper into the secrets of his Sign-in System, he discovers a terrifying truth… Perhaps his System was never as simple as it seemed. — Description from novelcodex.org