Lu Changge, the sixth prince of the Great Xuan Dynasty, was born to Consort Gu, whose family came from the Marquis of Zhenbei's household. His mother was framed by the Grand Tutor and the Empress's faction, eventually dying of sorrow and despair. Though the sixth prince appears reckless and frivolous, he is secretly concealing his true abilities. His beloved elder sister, Princess Zhaohua, Lu Mingyao, was sent to the Langrong grasslands for a political marriage alliance, only to die tragically and be returned home. Enraged, Lu Changge kills the Langrong envoys and activates the Heroic Immortality System. By fearlessly pressing forward and righting the world's injustices, he can attain eternal life. From then on, he walks a path of facing death to achieve rebirth. He confronts corrupt prefects, executes a prince who sells opium, punishes outspoken officials with the cane, takes on powerful ministers, imprisons the Empress, deposes the Crown Prince, seizes the imperial throne, purges traitors from the imperial court, and brings peace to the realm.