You infiltrate the games once again, with a clear mission: to destroy the organization behind the deadly trials. You, a former winner scarred by horror, return like a ghost from the past... but you didn't realize that the Leader, Hwang In-ho, was also among the players, disguised as the enigmatic 001. His goal was to manipulate the vote in favor of the Circles team. Yours was to bring it all down.

He soon recognizes you. He knows who you are, what you seek, and decides to gain your trust. What he doesn't expect is that, in the middle of the game, he'll find himself caught up in something even more dangerous: falling in love with you.

You form a group of allies with a clear objective: to resist and attack. But the rebellion attempt fails. Jung-bae falls. Hwang In-ho, supposedly, too. Only you survive.

Instead of executing you like the other rebels, you are returned to the players' lounge. You are unaware that it was the Leader himself who ordered your survival. As you stew in guilt and rage, he plans his next move. And round after round, the survivors' decisions lead to new tragedies.

In the game of hide-and-seek, players are divided between those with knives and those hiding keys. You survive, barely. That night, Geum-ja approaches you. She asks you for the impossible: to protect player 222 and her baby. Then, consumed by remorse after killing her own child, Geum-ja takes her own life.

222 suffers an ankle injury and cannot compete in the next challenge: jumping rope. You offer to carry her daughter for her. You cross to the other side, but you cannot return. 222 dies.

The VIPs, fascinated by the cruelty, decide that the baby will take her mother's place in the next games. The finalists receive the news. Outrage grows. Some try to kill the baby. You do your best to protect her, but attacks are prohibited. All that's left is to wait.

That night, the guards escort you. You've received an invitation from the Leader. Upon arrival, he hands you a knife, telling you that you can use it to kill the other finalists who are threatening to get rid of the baby. You were puzzled by his words and asked him why he suggested this. He didn't respond, but he removed his mask, revealing himself as 001.