---
title: "The Legend of the Blue Sea"
year: 2016
canonical_url: "https://www.archytele.com/show/the-legend-of-the-blue-sea-2016"
media_type: "tv"
tmdb_id: 67018
imdb_id: "tt5766194"
status: "Ended"
seasons_count: 1
episodes_count: 20
runtime_minutes: 60
community_rating: 7.4
vote_count: 218
content_rating: "Unrated"
---

# The Legend of the Blue Sea (2016) — Television & Cinema Intelligence Dossier

> **Archytele Living Vault Canonical Record**: https://www.archytele.com/show/the-legend-of-the-blue-sea-2016

## Executive Summary & Cultural Positioning

The Legend of the Blue Sea is a South Korean television series that aired in 2016. The drama centers on a mermaid who mysteriously travels from the Joseon period to modern-day Seoul. In contemporary times, she encounters a swindler whose connection to her past becomes a central focus of their relationship. The series explores themes of love, identity, and the clash between historical and modern worlds through the supernatural premise of time-crossed romance. The mermaid character must navigate life in present-day Korea while dealing with her unusual circumstances and the mysteries surrounding her journey through time. Her relationship with the swindler develops as both characters confront their respective pasts and the unexpected bonds that tie them together across centuries. The show combines fantasy elements with romantic drama as it follows these two individuals from different eras who find themselves drawn to each other despite the obstacles created by time and circumstance.

## The Hook & The Verdict

**The Hook**: "A mermaid from the Joseon era navigates modern Seoul while encountering a mysterious swindler."

### Why Watch
- blends historical and modern settings
- features a supernatural premise

### Caveats & Content Note
- contains complex plot threads
- Tone & Suitability: The series contains a mix of lighthearted humor and dramatic elements suitable for general audiences.

**Micro-Themes & Vibe Matrix**: fantasy, romantic, comedic, period-drama

## Streaming Availability Matrix

| Region | Stream (Subscription) | Free / Ads | Rent / Buy |
| :--- | :--- | :--- | :--- |
| **United States (US)** | Rakuten Viki | Rakuten Viki | None |
| **Canada (CA)** | Rakuten Viki | None | None |

## Season Architecture & Lore Primers

### Season 1 (20 Episodes)
The Legend of the Blue Sea is a 2016 television series spanning the genres of comedy, drama, and science fiction and fantasy. The story follows a mermaid from the Joseon era who follows her true love, a nobleman's son named Kim Dam-Ryung from the Joseon Dynasty, into modern-day Seoul. Dam-Ryung's modern-day doppelganger is Heo Joon-Jae, a skilled scam artist. Joon-Jae initially takes an interest in the mermaid, Sim Chung, because she wears a jade bracelet valued at six million dollars. 

With nowhere else to go, Sim Chung is taken in by Joon-Jae. At his home, she encounters Joon-Jae's con partners, Jo Nam-Doo and Tae-O, who are hiding from a vengeful past victim of their scams. Sim Chung also faces a rival for Joon-Jae's affection named Cha Si-A, who is a researcher at KAIST dealing with ancient artifacts. Additional danger arises in the form of a killer named Ma Dae-Young, who is sent by Joon-Jae's stepmother. The stepmother aims to make her own son the heir to Joon-Jae's fortune, leaving Sim Chung to navigate her unfamiliar new environment while helping Joon-Jae evade ongoing threats.

## Filler vs. Essential Episode Classifier

- **Total Tracked Episodes**: 20
- **Crucial Mytharc Episodes**: 3 (15%)
- **Character Core Episodes**: 17 (85%)
- **Side Quest / Filler Episodes**: 0 (0%)

## Creative Credits

- **Created by**: Park Ji-eun
- **Networks / Studios**: SBS

## Key Cast Continuity

- **Gianna Jun** as *Shim Cheong / Se-hwa*
- **Lee Min-ho** as *Heo Joon-jae / Kim Dam-ryung*
- **Lee Hee-jun** as *Jo Nam-doo / Park Moo*
- **Shin Won-ho** as *Tae-oh*
- **Shin Rin-a** as *Seo Yoo-na*
- **Shin Hae-sun** as *Cha Shi-ah*
- **Moon So-ri** as *Ahn Jin-joo*
- **Na Young-hee** as *Mo Yoo-ran*
- **Hwang Shin-hye** as *Kang Seo-hee/Kang Ji-yeon*
- **Oh Yeon-ah** as *Young Kang Seo-hee/Kang Ji-yeon/Hong Nan*

## Canonical Frequently Asked Questions

### Q: Is this series based on a book?
The provided information does not state that the series is based on a book.

### Q: What genre is the show?
It is a fantasy drama that incorporates elements of romance and comedy.

### Q: Where does the story take place?
The narrative shifts between the Joseon period and present-day Seoul.

### Q: Who is the main character?
The story centers on a mermaid who travels to the modern era.

### Q: Does the show feature a swindler?
Yes, the mermaid crosses paths with a swindler who may have historical ties to her past.

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*Generated by Archytele Open Intelligence Systems. Data verified against TMDB and JustWatch APIs.*