Leng Wuyan, a name that scares countless people in the world. He holds the Red Demon Sword and intends to unify the martial arts. In a dense forest battle with Meng Zixuan, a famous martial arts sect, he lost all his martial arts skills but was seriously injured. By chance, he was rescued by the current Prince Rong. He took Wangyousan and let go of his past. He replaced Long Ruoqi, the crown prince of Prince Rong who was assassinated and disappeared, and dealt with the current Emperor Long Ruoxuan and King Han Long Ruohan. The prophecy of the "idle man" twenty years ago - that brothers would kill each other - was still ringing in my ears, and as the only hope of the Longze Kingdom, he was thrown in by Prince Rong. Where should misplaced love go? Can the increasingly true predictions be broken? How to sort out the entangled past? Singing the same song "The Hairpin-headed Phoenix" together, we will be a pair for the rest of our lives.