Xu Yu, the brilliant playboy who hides his sharpness beneath a facade of good-for-nothingness. After successfully clearing his mother's name, he vanished without a trace. Not long after, he reappeared in enemy territory to seek a certain truth. However, his past exploits turned him into an idol for the people there. To avoid the gaze of the higher-ups, he disguised himself to enroll in a famous academy, facing the mystery of his birth and a conspiracy that shook the realm.