Yu Ning, a girl with poisonous bones and bones, went to Beijing alone to look for her brother. She was in danger every step of the way, but unexpectedly got the secret protection of Chen Wang Huo Jingchen in the abyss of intrigue. He is a feared man in power in the court, but he only shows rare tenderness and planning to her; she is a poisonous doctor who is obsessed with finding her brother. Under his protection and guidance, she gradually sees the truth of the chess game in the court. He shielded her from open and hidden arrows and helped her to gain a firm foothold in the cracks of poison and intrigue; under his cold shell, she came into contact with the deep loneliness and struggle. When the clues of Brother Xun gradually intertwined with the mystery of the life experiences of the Ning brothers, they were shocked to realize that the bond that began with guardianship had already left a mark of redemption in each other's lives. In the smoke of power and intrigue, he is her armor and she is his light; in the torrent of troubled times, they are each other's fulcrum. In the intertwining of conspiracy and affection, they write a legend about trust, redemption and shared destiny.