Jirisan National Park, Korea's oldest and largest national park, is home to a team of dedicated rangers led by the exceptional Seo Yi Kang (Jun Ji Hyun), a skilled tracker known for saving countless lives. Alongside her is Kang Hyun Jo (Joo Ji Hoon), an ex-military lieutenant turned rookie ranger with impressive skills, and their colleague Jung Goo Young (Oh Jung Se), under the leadership of Jo Dae Jin (Sung Dong Il). As mysterious rumors begin to circulate about the mountain's unexplored regions, the rangers' expertise and courage are put to the ultimate test. They must confront the challenges of Mount Jiri's treacherous terrain and uncover its hidden secrets, risking their lives to protect visitors and unravel the mountain's mysteries. This 2021 South Korean drama explores the dangerous and compelling world of national park rangers.

When Joseon-era mermaid Sim Cheong (Jun Ji Hyun) follows her true love, she finds herself mysteriously transported into modern-day Seoul. Though separated from her true love, she soon crosses paths with his doppelgänger, Heo Joon Jae (Lee Min Ho). With nowhere else to go, Joon Jae takes the stranded mermaid in, though not out of the goodness of his heart. As a con artist, Joon Jae is quick to spot the priceless jade bracelet Sim Cheong wears. Determined to take Sim Cheong for all she’s worth, Joon Jae soon finds himself thinking twice about the mermaid after she helps him evade the lethal plans of his greedy stepmother. As the two draw closer together, will the charms of the ancient mermaid begin to melt the icy heart of a bitter conman? Inspired by a historical folktale, this 2016 South Korean drama series was directed by Jin Hyuk.

Min Joon fell from outer space to the land of Joseon in 1609. He remains young and beautiful, just as he first came to the earth. Moreover, he can move surprisingly fast with keen eyesight and hearing. He can also foresee the future but never uses his powers, planning to live a quiet life without others bothering him. He takes a cynical stance on love, thinking it's merely lust and greed. However, this completely changes for him when he meets Song Yi. He learns to love through her, which leads him to be in danger of being exposed to the world.

Eun Jo (Jun Ji Hyun), living in a lakeside house called Il Mare, dreams of becoming a voice actor and struggles with loneliness after her fiancé's departure. When she decides to move, she sends a forwarding note to the next tenant. Surprisingly, she receives a reply from Sung Hyun (Lee Jung Jae) dated 1997 – two years in the past. Their extraordinary correspondence develops into a unique time-traveling romance, challenging the boundaries of time and connection. As they attempt to bridge their temporal divide and meet in person, unexpected complications arise. This is a 2000 South Korean romantic film directed by Lee Hyun Seung.