Original: 오아시스
In 1980s South Korea, two friends face a romantic rivalry amidst the turmoil of political unrest, leading to tragedy and a quest for revenge that could tear them apart.
In an era of upheaval like burning thirst, Du-Hak and Cheol-Woong's passion in front of the Namhae Yeosu Theater is questioned. That's how the two young men first met a high school girl. And the first meeting of the three begins!
It's pouring rain in front of Yeosu Hospital, where Young-Tak who is unconscious after being hit by a rock doesn't wake up, Cheol-Woong begs Doo-Hak to confess his crime. Du-Hak, who is in prison, tells Jung-Shin who came to visit "You are worse off". Time flies, Cheol-Woong who is a university student is beaten by Baekgoldan during a demonstration, but who saves him...
Cheol-Woong gets beat up by the security team and becomes a spy. After getting out of prison, Doo-Hak joined a building fraud syndicate. Jung-Shin works together and becomes under Cha Geum-Ok, a theater owner in Seoul. Meanwhile, Yeo-Jin moves to Seoul with the help of Hwang Choong-Sung.
That's how Jung-Shin shouts at Du-Hak who barges into the set and acts as a thug. Du-Hak works with his former prison friends and works with Yeom Kwang-Tak's organization. Then there is Yeo-Jin who opens a Paris Salon and enjoys her time with Choong-Sung. Meanwhile, Cheol-Woong's feelings for Jung-Shin have not gone away.
Du-Hak's sister gets involved in a workers' protest. Du-Hak who was involved to clean up the problem was confused about what he should do. Cheol-Woong, who became a prosecutor, tries to get away from Oh Man-Ok, but Man-Ok tries to use Cheol-Woong's spy skills again. Even worse, they hear the news about Jung-Shin's kidnapping!
Du-Hak defeats Young-Pil in an unimaginable way, and even immobilizes Gwang-Tak. Cheol-Woong borrows Man-Ok's power to save Jung-Shin, and Du-Hak has no choice but to watch the events unfold. After a long time, the three of them gathered at a restaurant. Cheol-Woong declares war, saying that he will challenge Jung-Shin to be his girlfriend!
After seeing Choi Young-Sik's diagnosis of 'non-obstructive Azoospermia', Chung-Seong is convinced that Cheol-Woong is his son. He spends the night with Yeo-Jin, to confirm their love again.
Du-Hak becomes in charge of his organization and takes over the reconstruction work. She sets her wedding date with Jung-Shin and matches the wedding dress. Hearing the news, Cheol-Woong's heart burned. Meanwhile Chung-Seong and Yeo-Jin are also preparing for their wedding.
Du-Hak quits his job as a thug and starts his new job as a construction businessman. He has also set his wedding date with Jung-Shin and matched the clothes for their wedding. Cheol-Woong's heart burns at the news. Meanwhile Chung-Seong and Yeo-Jin are also preparing for their wedding. Joong-Ho finds out about Yeo-Jin's lie about Cheol-Woong's birth, and says that it's not the right thing to do. Yeo-Jin and Cheol-Woong give up the Du-hak family in their own way, and create a new whirlwind of trouble.
Cheol-Woong meets Du-Hak who is undergoing questioning at the prosecutor's office. Du-Hak questions what Cheol-Woong was so surprised about after hearing the news. Cheol-Woong takes Du-Hak out and postpones the inspection to complete the funeral process for Du-Hak's father. Du-Hak's mother wept as she watched her son after he stood guard alone at the funeral home. Meanwhile, Jung-Shin hatches a plan to help Du-Hak and turns to Cheol-Woong for help.
From the dark night to the bright morning, the marine police search for Du-Hak. Jung-Shin is devastated after hearing from Cheol-Woong that it seems Du-Hak has drifted out to sea. Three years later, Cheol-Woong works with Choong-Sung after returning from an assignment in the area. Meanwhile, Jung-Shin hears shocking things about Cheol-Woong from Du-Hak's mother.
Du-Hak remembers his past after Chae Dong-Pal keeps his promise and sends him back to Korea in disguise. Jung-Shin develops his business with the help of Cheol-Woong after becoming independent as the "Young Generation Film Company". Du-Hak visits Hyeong-Ju, Seon-Woo, and Kil-Su, who run a gukbap restaurant together, and a tearful reunion ensues. When Du-Hak talks about his plan, they dissuade him from dreaming of revenge by saying that it won't have much effect...
Jung-Shin can't believe the appearance of Du-Hak in front of him. Du-Hak tells Jung-Shin everything that Cheol-Woong and his family did that destroyed Du-Hak's family. Jung-Shin is surprised to hear all that. Meanwhile, a cornered Man-Ok meets Yeo-Jin and shows her a letter written by Joong-Ho. Man-Ok threatens with a letter containing Joong-Ho's confession that he is Cheol-Woong's biological father. Du-Hak and his friends hatch a plan to take down Yeo-Jin.
We put out the fire with Jung-Shin knowing that everything that happened was caused by Cheol-Woong and his family. He realized how hard Du-Hak felt that he had nightmares when they spent the night together. Du-Hak and Jung-Shin go to Du-Hak's mother to tell her that Du-Hak is still alive. Du-Hak's mother cries and says that today is Du-Hak's new birth day. Meanwhile, Go Poong-Ho and others hatch a grand plan to trick Yeo-Jin at the Paris Salon by providing false information.
Du-Hak, who returns, finally meets Cheol-Woong. Du-Hak asks Cheol-Woong to let him and Jung-Shin go so they can live peacefully in a far away place. Cheol-Woong refuses it. Du-Hak was furious. Jung-Shin who saw that calmed him down and said he would protect Du-Hak from anything. Du-Hak tells Cheol-Woong he won't give in again.
Choong-sung kills Man-ok and accuses Doo-hak of being a spy. He goes public about Doo-hak's case and launches a public search for Doo-hak. Jung-shin also reports Yeo-jin's special case to the public and drives a wedge between Cheol-woong and Choong-sung. Doo-hak comes to the Paris Salon to end the two men. Everyone gathers at the Paris Salon. Doo-hak's mother reveals the secret of Cheol-woong's birth there.
