Accidentally time-travelling to become the Crown Prince of Dayin who was miserably framed by the Second Prince, who colluded with factions and fabricated charges to slander him for treason. The Emperor listened to slanderous talk, deposed him, and cast him into the Cold Palace. Former trusted aides scattered everywhere, enduring cold gazes and humiliation. In the desperate situation, only Liu Zhen accompanied him by his side. He suppressed the hatred in his heart, chose to sleep on brushwood and taste gall to lay out a layout in the court, step by step dismantling the Second Prince's conspiracy, defeating the invasion of the Mobei grand army, bringing all the traitorous factions to justice, and finally ascending the imperial throne.