Born in the sin of incest, raised in the purgatory of violence and torture. Li Qingye's world was twisted from the beginning: his mother was crazy and violent, beating and scolding him frequently; his father was paralyzed in bed, moaning like a ghost all day long; and there was a mentally retarded uncle who followed them like a shadow. In this family, living itself is a kind of punishment, and even breathing must be careful. He was used to surviving numbly amid slaps and moans, and thought he would rot in the mud like this, until that young boy who was also covered in scars broke into his life.
Chen Jinnian is not a savior, he himself has scars. But it was this "sympathizing with each other" that allowed them to see the light in each other. There is no vitality of love, no life and death of hatred. In this dark abyss, they are each other's only lantern holders. Two teenagers abandoned by the world, back to back in despair, mend each other's broken souls with an almost tragic friendship. They are not lovers, but they understand each other's pain better than lovers; they are not relatives, but they find the reason to live in each other.
This is a redemption about "symbiosis". In this abyss, they depended on each other and were each other's backbone. They forcibly found a way from hell to the world. "As long as you are still standing, I will not fall." - This is the most silent and firmest oath between them.
Concept: When danger comes, what stands behind is not necessarily love or family, but also friendship.