Cultivation of Immortality Begins with Cleaning the Toilet

He traveled through time to cultivate immortality, but became a loser that everyone despised. I wanted to lie down and be a salted fish, but accidentally awakened the "996 Immortal Cultivation System." As long as you complete the KPIs released by the system, you can get various weird rewards. Since then, there has been a cleaner in the world of immortality who cleans the toilets in the sect during the day and practices crazy involution at night.