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Korean emperor Lee Gon tries to close the doors to a parallel world which was opened by demons; a detective tries to protect the people and the one she loves.
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Episodes
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- E1 Episode 1Next upApr 17, 2020 · 73 min · ★ 8.9
Synopsis

Lee Gon mourns the tragic death of his father. Lee Lim goes on the run — and finds escape when he comes across a door to a parallel universe.
Guest stars: Kwon Yul (Lee Ho (the late emperor, Lee Gon's father)), Ko Dong-ok ([Gangster])
- E2 Episode 2Apr 18, 2020 · 73 min · ★ 8.5
Synopsis

Gon insists he is an emperor from another world. An incredulous Jeong Tae-eul takes him to the police station, where he sees a familiar face.
Guest stars: Ko Dong-ok ([Gangster])
- E3 Episode 3Apr 24, 2020 · 72 min · ★ 7.8
Synopsis

Though Tae-eul finds Gon's story difficult to believe, some things about him are completely inexplicable. At work, she gets busy with a murder case.
Guest stars: Yang Hyun-min ([Gambling boss])
- E4 Episode 4Apr 25, 2020 · 73 min · ★ 9.5
Synopsis

When Tae-eul loses her police badge, she can't help but think about Gon. Meanwhile, Kang Sin-jae has had it with his mother's bad habits.
Guest stars: Kwon Yul (Lee Ho (the late emperor, Lee Gon's father)), Yang Hyun-min ([Gambling boss])
- E5 Episode 5May 1, 2020 · 73 min · ★ 8.8
Synopsis

Being introduced to Gon's world is a lot to process for Tae-eul, who's taken to the palace. A disgruntled Jo Yeong keeps an eye on her.
Guest stars: Ko Dong-ok ([Gangster])
- E6 Episode 6May 2, 2020 · 73 min · ★ 8.7
Synopsis

A potential military conflict threatens the kingdom. Gon promises Tae-eul he will return to her, and steps forward to take care of the situation.
- E7 Episode 7May 8, 2020 · 73 min · ★ 7.6
Synopsis

Gon brings Yeong along on his trip back to Tae-eul. He has a favor to ask of her, while she's found something troubling to share with him.
Guest stars: Kim Gwi-seon (Park Mun-haeng), Moon Dong-hyeok (Park Jung Gu)
- E8 Episode 8May 9, 2020 · 73 min
Synopsis

In Corea, Luna is set free. In Korea, Gon and Yeong run into a man who recognizes them, and Sin-jae experiences childhood flashbacks.
Guest stars: Moon Dong-hyeok (Park Jung Gu)
- E9 Episode 9May 15, 2020 · 72 min
Synopsis

Gon draws closer to tracking down Lim, and asks Jo Eun-sup to trade places with Yeong. Mail from an unknown sender bothers Koo Seo-ryeong.
Guest stars: Tae In-ho (Choi Min Hwan), Yang Hyun-min ([Gambling boss])
- E10 Episode 10May 16, 2020 · 73 min
Synopsis

On Lunar New Year, Gon and Lim come face-to-face in a public standoff. Tae-eul opens up to Sin-jae about the other world and her ongoing case.
Guest stars: Tae In-ho (Choi Min Hwan)
- E11 Episode 11May 22, 2020 · 72 min
Synopsis

A compelling offer finds its way to Luna. Gon's investigation into a devastating murder leads him to an old traitor and a clearer idea of Lim's schemes.
- E12 Episode 12May 23, 2020 · 72 min · ★ 9.8
Synopsis

Frightening circumstances land Tae-eul back in Gon's arms. When Yeong runs into a woman who looks strikingly familiar, he follows her.
- E13 Episode 13May 30, 2020 · 73 min
Synopsis

Knowing Seo-ryeong is up to no good, Gon throws her in a tight spot. Upon returning to her world, Tae-eul realizes Luna is there, too.
- E14 Episode 14Jun 5, 2020 · 72 min
Synopsis

Gon and Tae-eul are separated when he sets out to fulfill what's been his fate all along. Sin-jae makes a startling discovery.
Guest stars: Kwon Yul (Lee Ho (the late emperor, Lee Gon's father)), Kim Dong-gyun (Kang Sin Jae's father)
- E15 Episode 15Jun 6, 2020 · 81 min
Synopsis

Lim plots his next meeting with Gon. Understanding there's only one thing he can do to right wrongs, Gon comes to a heart-wrenching decision.
- E16 Episode 16Jun 12, 2020 · 77 min
Synopsis

A final attempt to put a stop to Lim's ambitions comes with profound consequences. Gon travels far and wide in search of Tae-eul.
Guest stars: Seo Woo-jin (Secretary Mo's Son), Jang Ha-ran (Jeong Hyo-jin's Mother)
Cast & crew
Directed by Baek Sang-hoon, Jung Jee-hyun, Yoo Je-won
Lee Min-hoLee Gon
Kim Go-eunJung Tae-eul / Luna
Woo Do-hwanJo Eun-sup / Jo-young
Kim Kyung-namKang Shin-jae
Jung Eun-chaeGoo Seo-ryung / Goo Eun-ah
Lee Jung-jinLee Rim
Jeon Moo-songLee Jong-in / Prince Boo-young
Kim Yeong-okNoh Ok-nam
Jeon Bae-sooJung Do-in
Seo Jeong-yeonSong Jung-hye
Park Won-sangPark Moon-shik
Park So-jinJo Hae-inVideos
Trailers
Images · 14
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Reviews · from TMDB members
Yohan Yukiya Sese Cuneta 사요한Feb 2, 2021
**_The Greatest Science Fiction Romance in the last 40 years_** "더 킹: 영원의 군주" or "The King: Eternal Monarch" (2020) was the best science fiction and romance of the 2010 decade. I would say that this show has gained the number one (#1) spot in my list of "Top 10 Overall Best Sci-fi TV Show" pushing down "Fringe" (2008) which held that rank for 12 years. **I. Story** The writer, Kim Eun Sook of the "Lovers in Paris" (2004); "Descendants of the Sun" (2016); "Goblin" (2016… Read more
); and "Mr. Sunshine" (2018) fame, once again showed us her amazing talent in creating stories that truly captures the imagination and heart of the audience. In "The King: Eternal Monarch" (2020), Kim Eun Sook has woven beautifully the "parallel world" trope into her memorable romance plots. She did not leave it simply as a literary device then forgotten, she placed it in the center of the series, and the drama and romance unfolded through it. Each episode was more or less one hour and ten minutes, and no episode was boring, no episode was dragging, no episode was a repeat of previous ones. In every episode there is a fresh plot, a new story to tell which added to the development of the characters, the relationships between them, and the tension and clashes when worlds and ambitions collide. **II. Acting/Cast** What an amazing cast--Lee Min Ho, Kim Go Eun, Woo Do Hwan, Kim Kyung Nam, Jung Eun CHae, Lee Jung Jin, Kim Yong Ji, Kang Hong Suk--they picked the right people for the roles. Their unique acting styles made their characters fully alive and their interaction with each other natural. The show was not only about "Yi Gon" (Lee Min Ho) and "Jeong Tae Eul" (Kim Go Eun), everyone were key persons in creating the world of the "Kingdom of Corea". They all brought their best and created a masterpiece. **III. Production** While there were a few noticeable errors, the editing and sequence of the scenes covered it all. I especially like how they did not present the stories, in each episode, in a linear fashion; instead they kept scenes for the next episodes and did flashbacks at the right time. The mixing of historical with the modern in the fictional "Kingdom of Corea" were seamless. There were no out-of-place moments. Where there are modern things, the room was designed to fit these modern gadgets. Where there should be a historical look and feel, the room either did not have any modern materials or the few blended with the environment. Not an easy task to achieve. It was not only the interior designers but it was also the directors and cameramen who did great shots in creating a seamless mix of historical and the modern environments. **IV. Conclusion** I highly recommend "더 킹: 영원의 군주" or "The King: Eternal Monarch" (2020) especially if one is a fan of "parallel world" type of science fiction. Think of this show as "Fringe" (2008) but with touchy romance and intense family rivalry. Overall score of 9.5 out of 10 stars.
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