The Idle Mermaid

The Idle Mermaid
Promotional poster for The Idle Mermaid
Also known asSurplus Princess
The Mermaid
GenreRomance
Comedy
Fantasy
Based on"The Little Mermaid"
by Hans Christian Andersen
Written byPark Ran
Kim Ji-soo
Directed byBaek Seung-ryong
StarringJo Bo-ah
On Joo-wan
Song Jae-rim
Park Ji-soo
Country of originSouth Korea
Original languageKorean
No. of episodes10
Production
Running time45-50 minutes on Thursdays at 23:00 (KST)
Original release
NetworktvN
ReleaseAugust 7 (2014-08-07) 
October 9, 2014 (2014-10-09)
Korean name
Hangul
잉여공주
Revised RomanizationIngyeo gongju
McCune–ReischauerIngyŏ kongju

The Idle Mermaid (Korean: 잉여공주; RR: Ingyeo gongju; lit. Surplus Princess) is a 2014 South Korean romantic comedy television series starring Jo Bo-ah, On Joo-wan, Song Jae-rim, and Park Ji-soo. A modern retelling of the 1837 fairy tale "The Little Mermaid" by Hans Christian Andersen, it aired on tvN from August 7 to October 9, 2014 on Thursdays at 23:00. Originally slated to run for 14 episodes, the total number of episodes was reduced to 10. The series inspired an unofficial Indonesian adaptation called Mermaid in Love.