The Demon Lord Jin was reincarnated as Lin Feng, a weak young man, and a burnt-tailed guqin was his clarion call for revenge and return. He thought that this life was just to kill off his past enemies and reach the top again, until he met her - Yun Zhi, the flute-playing fairy of Tingxue Tower.
The sound of her flute was a nightmare engraved into his soul and the only Sanskrit sound that awakened the tenderness in his heart. In her previous life, she was Shaoyin Qingshang in the immortal world. A tampered song of "Requiem" indirectly caused him to lose control and eventually destroyed his immortality for him. In this life, she is Yunzhi who has forgotten everything, competing with his music and going against the right path.
When the memory wakes up, love and hate are intertwined. She recalled guilt and affection, and he was full of pain and protection. The Immortal Emperor's conspiracy is once again shrouded, and the fateful killing situation reappears. This time, can Demon Lord Lin Feng use the piano in his hand to overcome the calamity in his heart and protect this cinnabar mole that is melted into bone and blood?
This is the return journey of the Demon Lord, and it is also a story about love, betrayal and redemption beyond fate.