Browse episode ratings trends for The Legend of the Blue Sea. Simply click on the interactive rating graph to explore the best and worst of The Legend of the Blue Sea's 20 episodes.
Best Episodes of The Legend of the Blue Sea
Hurt
S1 Ep11
8.5
21st Dec 2016
Sim Chung leaves the house after learning Joon-Jae is a conman. In a panic, Joon-Jae desperately searches for her.
Episode 15
S1 Ep15
8.4
5th Jan 2017
Sim Chung's heart will stop without Joon-Jae's love. Upon learning this, Joon-Jae talks about his dreams and finding out that Sim Chung is a mermaid.
Altruism
S1 Ep10
8.4
15th Dec 2016
In a museum, Joon-Jae sees a figure in a painting that looks just like him. Unable to identify the figure as Dam-Ryung, he grows distraught.
Final
S1 Ep20
8.4
25th Jan 2017
Sim Chung erases Joon-Jae's memory and returns to the ocean. When Joon-Jae wakes up, there's only a single pearl next to him. Three years pass...
Sincere
S1 Ep8
8.4
8th Dec 2016
Jung-Hoon teaches Sim Chung that jealousy is the way to a man's heart. Meanwhile, Joon-Jae sees an image of a man with a mermaid on an ancient vase.
Sweet
S1 Ep12
8.3
22nd Dec 2016
Joon-Jae is arrested by detective Hong. When Sim Chung realizes they are in danger, she tracks them down.
Worst Episodes of The Legend of the Blue Sea
Destiny
S1 Ep1
7.5
16th Nov 2016
In 1958, the nobleman Dam-Ryung releases a mermaid back into the ocean. In present-day Seoul, the figure of conman Joon-Jae stands on the same spot.
Episode 17
S1 Ep17
7.8
12th Jan 2017
After almost being caught by Dae-Young, Sim Chung erases his memory. In the process, she witnesses the final moments of Dam-Ryung and Se-Hwa.
Meet
S1 Ep2
7.8
17th Nov 2016
Joon-Jae brings a beautiful woman back to his hotel, unaware that she's a mermaid. Jin-Ok realizes she's been scammed and sends men after Joon-Jae.
Premonition
S1 Ep4
7.9
24th Nov 2016
At the aquarium, Joon-Jae runs into a woman being chased by security. Feeling a sense of déjà vu, Joon-Jae rescues her and brings her home.
Reveal
S1 Ep9
7.9
14th Dec 2016
Joon-Jae finally faces off with his pursuer Dae-Young. He suffers a major injury and confesses his feelings to Sim Chung before losing consciousness.
Find Again
S1 Ep3
7.9
23rd Nov 2016
With no memory, Joon-Jae finds himself alone on a beach next to a jade bracelet and a single pearl. Meanwhile, the mermaid crosses the ocean to Seoul.
The Legend of the Blue Sea Episode Guide
Destiny
S1 Ep1
7.5
16th Nov 2016
In 1958, the nobleman Dam-Ryung releases a mermaid back into the ocean. In present-day Seoul, the figure of conman Joon-Jae stands on the same spot.
Meet
S1 Ep2
7.8
17th Nov 2016
Joon-Jae brings a beautiful woman back to his hotel, unaware that she's a mermaid. Jin-Ok realizes she's been scammed and sends men after Joon-Jae.
Find Again
S1 Ep3
7.9
23rd Nov 2016
With no memory, Joon-Jae finds himself alone on a beach next to a jade bracelet and a single pearl. Meanwhile, the mermaid crosses the ocean to Seoul.
Premonition
S1 Ep4
7.9
24th Nov 2016
At the aquarium, Joon-Jae runs into a woman being chased by security. Feeling a sense of déjà vu, Joon-Jae rescues her and brings her home.
Reduplicate
S1 Ep5
8.1
30th Nov 2016
Joon-Jae lives with the woman who he names Sim Chung. Fugitive Dae-Young has been on the run for 3 months when a murder occurs near Joon-Jae's house.
Jealousy
S1 Ep6
8.2
1st Dec 2016
Sim Chung is involved in a traffic accident. Joon-Jae rushes to the hospital to find her in critical condition.
Jealousy for Love
S1 Ep7
8.1
7th Dec 2016
Joon-Jae tells Sim Chung he loves her. Meanwhile, detective Hong comes across Dae-Young while investigating a murder.
Sincere
S1 Ep8
8.4
8th Dec 2016
Jung-Hoon teaches Sim Chung that jealousy is the way to a man's heart. Meanwhile, Joon-Jae sees an image of a man with a mermaid on an ancient vase.
Reveal
S1 Ep9
7.9
14th Dec 2016
Joon-Jae finally faces off with his pursuer Dae-Young. He suffers a major injury and confesses his feelings to Sim Chung before losing consciousness.
Altruism
S1 Ep10
8.4
15th Dec 2016
In a museum, Joon-Jae sees a figure in a painting that looks just like him. Unable to identify the figure as Dam-Ryung, he grows distraught.
Hurt
S1 Ep11
8.5
21st Dec 2016
Sim Chung leaves the house after learning Joon-Jae is a conman. In a panic, Joon-Jae desperately searches for her.
Sweet
S1 Ep12
8.3
22nd Dec 2016
Joon-Jae is arrested by detective Hong. When Sim Chung realizes they are in danger, she tracks them down.
Episode 13
S1 Ep13
8.3
28th Dec 2016
Joon-Jae is still having strange dreams. Sim Chung hears Joon-Jae say the name Se-Hwa in his sleep. She asks him who he is talking about.
Episode 14
S1 Ep14
8.2
4th Jan 2017
With Professor Jin's help, Joon-Jae learns he is an ancestor of Dam-Ryung. To avoid a tragic fate, he decides to protect Sim Chung whatever it takes.
Episode 15
S1 Ep15
8.4
5th Jan 2017
Sim Chung's heart will stop without Joon-Jae's love. Upon learning this, Joon-Jae talks about his dreams and finding out that Sim Chung is a mermaid.
Episode 16
S1 Ep16
8.1
11th Jan 2017
Joon-Jae and Yoo-Ran have an emotional reunion at Sim Chung's birthday party. Joon-Jae learns why Dae-Young has been chasing him.
Episode 17
S1 Ep17
7.8
12th Jan 2017
After almost being caught by Dae-Young, Sim Chung erases his memory. In the process, she witnesses the final moments of Dam-Ryung and Se-Hwa.
Episode 18
S1 Ep18
8.1
18th Jan 2017
After Il-Joong's death, detective Hong gets a warrant to search Seo-Hee for evidence. Meanwhile, Chi-Hyun threatens Nam-Doo to get him to cooperate.
Episode 19
S1 Ep19
8.0
19th Jan 2017
Chi-Hyun points a gun at Joon-Jae, but Sim Chung jumps in front and is shot. She slips into a coma, causing Joon-Jae to fall into despair.
Final
S1 Ep20
8.4
25th Jan 2017
Sim Chung erases Joon-Jae's memory and returns to the ocean. When Joon-Jae wakes up, there's only a single pearl next to him. Three years pass...
A mermaid from the Joseon period ends up in present-day Seoul, where she crosses paths with a swindler who may have ties to someone from her past.
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The best rated episodes of The Legend of the Blue Sea are:
Hurt S1E11 rated 8.5
Episode 15 S1E15 rated 8.4
Altruism S1E10 rated 8.4
Final S1E20 rated 8.4
Sincere S1E8 rated 8.4
Sweet S1E12 rated 8.3
The lowest rated episodes of The Legend of the Blue Sea are:
Destiny S1E1 rated 7.5
Episode 17 S1E17 rated 7.8
Meet S1E2 rated 7.8
Premonition S1E4 rated 7.9
Reveal S1E9 rated 7.9
Find Again S1E3 rated 7.9
The first episode of The Legend of the Blue Sea aired on November 16, 2016.
The last episode of The Legend of the Blue Sea aired on January 25, 2017.
There are 20 episodes of The Legend of the Blue Sea.
There is one season of The Legend of the Blue Sea.
