He does not know his origin, has no relatives, and no friends. By the way, he once had a master, but that was three years ago.
The master said that his destiny was weak and his life was short and his fortune was poor. Only by using the soul-locking hairpin to change one's destiny can one continue his life. The soul-locking hairpin has been in his hair since he could remember. Before his death, the master gave instructions: "The soul-locking hairpin requires one soul to be eaten a year in order to survive. Please remember this."