A heartfelt romantic drama that combines romance, comedy, suspense and strong character development. The first season follows Yoon Se-ri and Ri Jeong-hyeok as an unexpected accident brings them together across the Korean border.
Yoon Se-riβs life changes completely when a paragliding accident sends her across the border into North Korea. She is discovered by Ri Jeong-hyeok, who realizes the danger she is in and decides to hide her.
Jeong-hyeok decides to keep Se-ri hidden while searching for a way to get her back home. Se-ri slowly becomes familiar with his soldiers and the very different life around her.
Jeong-hyeok creates a cover story to protect Se-ri, but Jo Cheol-gang remains suspicious. Meanwhile, Seo Dan returns to North Korea and the attempt to send Se-ri home becomes increasingly difficult.
After another escape plan fails, Se-ri looks for a new way to reach South Korea. At the same time, Seo Dan arrives in the village, bringing another complication into Jeong-hyeokβs life.
Jeong-hyeok agrees to move forward with his marriage to Seo Dan, while Se-ri becomes increasingly involved in his life. Seung-joon also gets closer to discovering where Se-ri is hiding.
Se-riβs relationship with Jeong-hyeok becomes harder for Seo Dan to ignore. Meanwhile, Seung-joon tries to protect himself as the danger surrounding him continues to grow.
Se-ri finally has a chance to leave North Korea, but Jeong-hyeokβs condition changes everything. Instead of leaving him behind, she chooses to stay and help him.
Keeping Jeong-hyeok and Se-ri apart becomes almost impossible. As their relationship grows stronger, Jo Cheol-gang continues following their trail and the danger around them increases.
Se-ri comes face to face with the person who has been hunting her, while Jeong-hyeok is forced to take a dangerous step to escape Cheol-gang. The situation becomes more serious for everyone involved.
Se-ri returns to her life in South Korea, but everything feels different after what happened. Jeong-hyeok remains determined to deal with Cheol-gang and find a way to protect Se-ri.
Jeong-hyeok experiences the unfamiliar world of South Korea while trying to stay close to Se-ri. Back in North Korea, Seo Dan gives Seung-joon a place to stay after he loses his protection.
Jeong-hyeokβs comrades find themselves in South Korea and try to reconnect with Se-ri. Meanwhile, Seung-joon and Seo Dan begin opening up to each other.
Se-ri takes Jeong-hyeokβs comrades shopping and enjoys some time away from work with him. At the same time, Jeong Man-bok faces a difficult decision connected to his past.
Jeong-hyeok keeps watch over Se-ri while his comrades help wherever they can. Seung-joon becomes increasingly worried about Seo Dan as the danger around them continues to rise.
South Korean officials try to understand the situation as conflicting stories emerge. Meanwhile, Seung-joon attempts to escape from the people pursuing him.
As the story reaches its emotional conclusion, Jeong-hyeok leaves Se-ri with something meaningful before they part. Seo Dan also faces the final consequences of everything that happened.