Zishen, a creature that is neither human nor demon, is immortal and immortal. As if cursed, he repeats his lonely days over and over again.
He was fed up with the lonely days, so he learned to establish connections with people. The way he established connections with people was to make transactions with them. He believed that beneficial relationships were the strongest.
After living for thousands of years, he has met countless people, made countless transactions, and at certain moments will encounter relationships that have nothing to do with interests, but the time of existence is too short, not enough for his long life.