First-Level Dandy

The time in the dream is really illusory... In reality, time flies by... Eight hundred years of time evaporated in the blink of an eye, and the memories of past lives overlapped and intertwined in this life. Why did he, who was born into a wealthy family, suddenly disappear into thin air after spending twelve years of his childhood in silence? And when he returned again, people discovered that this legendary autistic idiot had suddenly turned into a top-notch playboy who guided the country and planned the world.