In the Lingxiao Palace, Mo Linyuan is an iceberg that has not melted for thousands of years. He is a ruthless Taoist respected by the immortal world. He only accepts disciples to find a sacrifice to "kill his beloved and prove the Tao". Su Yingluo was the chosen chess piece. She was rescued by him when Hongmengxu was about to die. She mistook the butcher's knife for salvation and kowtowed to become his master.
During the cold years of Hanyue Palace, she gradually came to know the truth. Hidden under the docile façade was Burning Heaven's rage: burning secret books, exploding elixir furnaces, drinking Hehuan powder in tea, and crazily criticizing every act, just to tear his Taoist heart to pieces. But he allowed her to play nonsense, and the waves that occasionally leaked out of his cold eyes were emotions that he was not even aware of.
When the devil's iron hoof crushed Ling Xiao, she was tied to the edge of the devil's abyss and became the last bargaining chip to force him to attain enlightenment. He once thought that the Dao Heart was indestructible, but the moment she fell into the abyss, he tore open the barrier with his bare hands and stained the sky with blood: "The ruthless path? I have changed to the mortal path."
A master-disciple disaster that started with exploitation ended up being a fate of two-way sinking. He abandoned his path and fell into the mortal world for her, and she conquered the madness for him. From the top of the clouds to the dusty mud, from fighting each other to staying together, it turns out that the end of the ruthless path is always the deep love that passes through the intestines.