Chen Lei's life was like a pool of stagnant water until that rainy night when he met Ye Liuli in the barren mountain. She is a demon who fell from the clouds, with sinister eyebrows and a sharp knife in her heart. She is covered in wounds but her eyes are wild; he is a mortal trapped in the market, running for a living and holding on for his daughter. He has smoothed his edges but has not lost his true heart.
An unexpected encounter brings mortal bones and demonic hearts together. She regarded the world as a quagmire, but in his clumsy care, she tasted the warmth she had never experienced before; he was content with his ordinary predicament, but under her influence, he regained the courage to fight against life.
The pursuit of immortality is getting closer and closer, and the mid-life crisis never disappears. The two people in desperate situations have become each other's only salvation. He used his earthly kindness to soften her frozen demonic heart; she used her extraordinary strength to split the thorns ahead for him.
When the pyrotechnics collide with the murderous aura, when ordinary perseverance meets the heaven-defying obsession, they will eventually join hands to find their own way of survival amidst the city's reinforced concrete and the swords and shadows of immortals and demons.