One foggy spring day, the 12-year-old Hyeok-su meets the young Eun-hye and determines then and there that he will love her for the rest of his life. Many years later, Hyeok-su is preparing to enter college when he rescues a woman from assault. It turns out to be Eun-hye. Despite the passage of time, neither had forgotten the other and they renew their relationship. However, fate places another smitten man in Eun-hye's life. He is also determined that he will marry Eun-hye. Eventually, Eun-hye is forced to choose between them.

A reality series pitting people identified with "genius traits" against one another in social games of strategy, logic, and negotiation skills. Each episode consists of a main match and a death match. The main match decides the winner and elimination candidate for the day. The winner receives a token of life, which grants immunity from the death match, and potentially garnets, a game currency worth ₩1,000,000 each. Garnets can be used to improve a player's chances of winning a game, as well as be traded with other players to gain favor. The elimination candidate chooses a player without a token of life to take part in a 1v1 game called the death match. The player who loses the death match is eliminated, and the winner of the death match gains their garnets. The last remaining player is the champion, and the total garnets held by the champion will be the final prize.

Ten players, 300 million KRW prize money! The last survivor of the game will take the money. Contestants from diverse backgrounds compete for survival in this brutal game, in which whatever means necessary are allowed. You can enjoy the complicated mind games as the contestants do politics, tell lies, design plots, or anything that can help them survive.