He has no name and no past. He is mixed up in the caravans traveling between Persia and the Central Plains, and is called "Unknown".
He had nothing but a blood-stained green ghost stone seal and a familiar but unfamiliar word, and he lived hard and searched for it.
He remembered the hoarse and affectionate words in his memory: Leave this city, never look back, and forget about me. Only in this way will you no longer suffer...