A beast-eared girl, identified by a System voice as a future Demon King, is declared ruler by her followers. To establish his new demonic reign, he demands a lair and is led to a dangerous cave guarded by a powerful beast. Nearby, human sect disciples detect a disturbance and head to the same cave. Ignoring his guide's fears, the aspiring Demon King confidently strides toward the cave, determined to seize it by force just as the human cultivators arrive.