In the Korean drama "Squid Game", the male protagonist Cho Sang-woo's character is not like other Korean drama characters, he is a very good person with the aura of a protagonist, and Cho Sang-woo is a very ordinary city citizen. The reason why Cao Shangyou participated in the squid game was to win a prize money to treat his mother, and in the end, Cao Shangyou also won all the prize money. When Cao Shangyou learned that his mother was sick and had no money to see a doctor, he had been borrowing money from his friends, but his friends did not lend a helping hand when Cao Shangyou was in danger, because Cao Shangyou's friends knew that Cao Shangyou was unable to repay the money.
Cao Shangyou felt frustrated that a person was drunk on the street, at this time, the organizers of the squid game noticed Cao Shangyou and handed Cao Shangyou a business card. Kong Liu, the director of the squid game, has been looking for people who are oppressed by society and desperate, and he will hand these people the business card of the squid game, so that when these people who are handed the business card participate in this game, Kong Liu's purpose is also achieved.
When these outlaws gathered together, they participated in a game of betting with their lives. The squid game is divided into 5 levels, and each level will not kill anyone. If the game fails or someone quits the game, the game's overseer will shoot and kill the traitors. Cao Shangyou also broke through many difficulties in the final episode and won the final prize. At the end of the game, only Cao Shangyou is left, and after Cao Shangyou won these prizes, his life has changed dramatically, he not only cured his mother's illness, but also prepared to go abroad to see his wife and children. Cao Shangyou dyed a red hair at the end, which is the same color as the caretaker in the squid game, which also indicates that the male protagonist Cao Shangyou will appear in the next season, because Cao Shangyou successfully passed 5 levels, so he was promoted from contestant to manager.