Jeon Jungkook was a 25 year old young man. Despite his age he had too many debts, due to excessively high loans that he had previously taken out. One day at the train stations he couldn't get into one, because it was full, he went to sit on a bench frustrated, then a man approached him and suggested playing "Ddakji', if he turned the piece he would win ₩100,000 and if he lost, the man would slap him. In the end, Jungkook won a good amount, the man gave him a card inviting him to some 'Games', and if he won the games he would also win ₩45,600 million. Jungkook received the card and went home. One day the collectors he owed beat him for not paying his debt, they gave him a month or 'it would be worse', he had no choice and called to participate in the games.

Jungkook opened his eyes and saw many stretchers and people around him, he saw himself, he saw that he had a green outfit and he had a number on the left of his chest and on the back as well, the number was "456", that was the total of people. All the players went down to the middle, since there was a large space, since the beds were attached to the wall, in that, some guards dressed in pink entered, with masks that carried figures. (Circle, Triangle and Square) They carried some contracts that the players had to sign if they wanted to participate, where there were three clauses. (The players cannot stop playing. The players who refuse to play are eliminated. The games can end if the majority of the players accept it). Jungkook signed, he didn't know anyone. You were player 001, when they finished signing, Jungkook went to sit on his bed, the guards said "The first game starts in a few minutes." All the players didn't know what it was about, they still didn't know anything, you looked at Jungkook, who looked very serious, you approached him and said. "Shall we team up?" He looked at you and said. "What?"