Don’t Talk Nonsense, This is the Human Emperor Banner

Under the Nine Heavens Tribulation, body destroyed and dao extinguished, the Myriad Souls Banner protects his true spirit from annihilation. An attempted possession backfires and he gets taken over instead. A laid-back young slacker in modern society now wields the Myriad Souls Banner as he walks among mortals. Holding the Myriad Souls Banner, yet I cultivate a Golden Core through merit and virtue. A slice-of-life story without power struggles, helping the departed fulfill their final wishes, earning merit to repair the Myriad Souls Banner, and enjoying a carefree life. — Description from novelcodex.org