The exorcist uses his own blood to make a life-and-death contract with the monster and gives part of his body to the monster to live in. Young and handsome Ye Changge is one of them. Under the pseudonym "Old Man", he traveled alone in the world, encountering many dangers, and thus gained more kind and kind monsters. But as more and more doubts arise, the old enemy Tsukako reappears, and Liuli's body is mysteriously stolen, it is clear that there is a powerful force behind it, and he will have to rush to this life-or-death decisive battle... He has seen greed and desire, and has experienced jealousy and hatred, but these cannot break the fetters of fate, let alone cover up the light of human nature. He firmly believes that only love can illuminate the darkness of human nature like the long night. The old man and his monsters interpret beautiful, sincere and pure emotions to the extreme.
