At the Beginning, I Sneaked into the Demon Gate, and the System Turned Out to Be Me.

On the first day I entered the Demon Sect, I was sold into a blood pool as material. If I die, I will go back and start over; if I die again, I will start over again. The third time I laughed: It turns out that this is not hell, but a mine - the mine is full of tricks, loopholes and oath clauses that can kill people. System? It's not God, it's me! I made myself the backstage player, with three lives at the beginning, and the nine palaces could be used as I wanted. In the Shadow Palace, I borrow a knife, in the Blood Palace, I raise a dog, in the Soul Palace, I seize the house, and in the Oath Palace, I use the terms as a knife. All villains? Very good. I just need you to choose a side first - and then execute them one by one.