An unknown fugitive wife who escaped from her husband's house in flames, in order to survive, knelt in front of the mountain gate of Xie Guxuan, the rumored murderer and deviant "devil". He accepted me as his apprentice just because he thought it was fun. My career in the world began with washing clothes for him, testing poisons, and being a living target for sword practice. Everyone in the world accuses me of helping the tyrants, being a little devil, and someone from a well-known and decent family wants to get rid of me quickly. They didn't know that that crazy master would flatten half a mountain with one sword when I was besieged; that he would use his own inner strength to keep me alive when I went crazy while practicing martial arts; that he would throw the best swordsmanship in the world to me in an understatement and say, "I will die if I can't learn it." I don't have a golden finger. The only thing I rely on is my photographic memory and the endurance honed in purgatory. I learned the sword in a desperate situation, and gained enlightenment in pursuit. Step by step, I grew from a burden under my master's wings to a strong man who can stand alongside him. When the conspiracy in the entire martial arts world was directed at my lonely and surly master, I held the sword in front of me, and I was not afraid of all the enemies in the world. Because he gave me this life, and my way is to protect him. This is a story about redemption and protection, supporting each other in the darkness, and ultimately overturning the hypocritical world of masters and apprentices.