In ancient times, there was a monster called Woe, with the head of a human and the body of a snake. They must be born as twins with their tails entwined. Unless one of them dies, he will be absorbed by the other. They will be inseparable for life. Therefore, the two brothers will fight constantly throughout their lives, just to kill each other and absorb and strengthen themselves. The Su family in the Nine Regions takes misfortune as a totem. The children in the family are divided into two lines, Yin and Yang. The birth of a baby from one lineage will be accompanied by a baby from the other lineage. Like a misfortune, if one party dies, the other party will gain all the cultivation of the deceased one, just like raising a poison, and the cycle repeats.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.