Century of Check-Ins: Rise of the Demonic Overlord

One morning, Su Hao awakens as Vice Hall Master of the Blood River Sect's Jiangnan Branch—with a mysterious sign-in system at his fingertips. Every location he checks into grants incredible rewards: forbidden cultivation techniques, legendary weapons, loyal subordinates, even immortality pills. Day by day, his power grows in secret. A hundred years of silent accumulation transforms him from a minor sect officer into an unstoppable demonic overlord whose name strikes fear across the cultivation world.