I don't know since when, a group of special creatures have lived on the land of China. They blend in with the crowd and look just like everyone else, but they have special abilities. Their tribesmen will encounter various accidents and die when they reach the age of twenty. Their bodies will disappear, but their souls will not die. They will be reborn as various animals, and they will always stay with the last person they saw before death and recognize them as their masters. They will not turn into human beings until the owner dies. Note: Do not interfere with the master's life or death, otherwise you will face punishment from heaven.