Qian Teqin Shenzhuo, who has a bone in his left arm, makes a living by absorbing the pain of others, but during an operation, he was targeted as an experimental subject by neurologist Bai Ni. She wants to restore her sister's dying memory, and that memory is the truth buried by Shen Zhuo himself. The underground doctor Huo Jin handed over the cold iron, and the police detective Qin Xiao pressed forward step by step. The bloody runes in his dream were oozing from the wounds of the silent girl Li Yao. When the 'Source Eater' awakens, all pain will eventually return to one person - and atonement is never redemption, but a sacrifice.