In order to buy a mansion for my younger brother, my biological mother sold me to an underground casino to be used as a living chip. After seven years of sinking, I relied on gambling to survive, but I heard my sister Zhou Tang whispering at a high-class dinner: 'Brother, do you still remember the rain that day? ' She had the truth behind my parents' deaths, and my mother was planning to sell her to a black market buyer. When my brother raised his gun and pointed it at me, the current criminal policeman handed over the tape - it turned out that I was not the ant they thought I was. Who should repay this blood debt?