Man-seok, a servant, longs for Jin-sa's only daughter, Seon-rye. On the day of her first wedding ceremony, Man-seok runs away with the refusing Sun-rye and starts a new life in the mountains. However, a year later, when the 6.25 broke out, Man-seok enlisted as a substitute for a few land guards, and Seon-rye, who believed that he died due to the division of the country, followed the man outside, ignoring her young daughter Kkot-sil. After returning from the military, Man-seok takes a flower thread that had grown from someone else's hand and grows it with love and sincerity for 15 years. However, her flower room also runs away to the city following the man she loves, leaving behind her love for her father. A mother and daughter who betrayed Manseok one after another and left. After waiting for the flower room, Man-seok goes all over the country to find it.

Suji, who was spending her honeymoon at a mountain lodge with her fiancé Jin-wook, is raped by four intruders one after another. Jin-wook leaves Suji's side, consumed by guilt for failing to protect her, and Suji spends her days wandering and suffering. One day, Suji finds fingerprints on a cigarette pack left behind by one of the four perpetrators and resolves to take revenge on them. Starting with the first man, gym instructor Ji Yoon-do, she orchestrates the mysterious deaths of model agency employee Moon Sang-woo and commercial artist Jin Jae-kwon, Chanel Jang, making it look like suicide, and then travels to Las Vegas, USA, to find the fourth man, Han Sang-il.

Ka-chi who spent a miserable childhood starts out looking for Eom-ji, who used to be at the orphanage with Ka-chi and was adopted by rich parents. When he finds Eom-ji, he hesitates to approach her for she became a member of high class society.

Yu Jin is a member of a gang in Itaewon district. He will do anything for money, even take a knife. The only person he cares about is his half brother Dol Ee. Shany and Geum Ja are dancers in clubs in Itaewon. They will sleep with anyone, even foreigners, for money. Shany and Geum Ja only have each other to lean on. Nam Ok and Jang Sook have their own fantasies about America and are obsessed by the American dream. Jang Po is an Itaewon mob boss who cruelly extorts money from the young people of Itaewon. These people fight each other with tragic consequences. Under the Itaewon sky, their suffering and tragic love continue.

Se-hie decides to break off her affair with Jin-hyun after she meets his wife at a publisher's party. However, Jin-hyun's wife is not going to make things easy on Se-hie once she realizes what has been going on.