Bloodstains on Ankles

On the day my mother fell to her death, when I was nine years old, I found a nail scratch on her ankle. Fifteen years later, the younger brother walked into the wedding ceremony of his father and Zhou Yanmei with a kitchen knife, sealed his throat with the knife, and then jumped. The father killed the mother, the younger brother killed the father and then himself. Four of the six members of the family died. I'm left with my enemy's son. I have to take their lives and stay alive. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.