Ryu Kyoung-sun

Jang Se-chool is the boss of a gang. He has been in love with Kang So-hyun for the past 3 years, even though she constantly rejects him and tries to push him away. Having had enough, she tells him that she can't be with him because she wants to be the first lady of Korea.

About the meeting of the world's first female promoter and a hard-working boxer, and every moment they cry, grumble, and cheer each other on until the day they become world champions, brimming with humanity. Sim Yeong Ja is the world's first female promoter. She transforms from Ko Su Mi, a popular actress who dominated the 1970s, into Sim Yeong Ja, the world’s first female boxing promoter. Known in her high school days as “Sim Dark,” she is a character with powerful charisma and a strong sense of justice who, through her forward-thinking strategies, shook up the boxing scene of the 1980s, a time when women were often excluded.