Mermaid princess Aileen (Jo Bo-ah) saves celebrity chef Kwon Shi-kyung (Oh Joo-wan) when he accidentally falls into the Han River while filming his television show and falls in love with him at first sight. She gets her hands on a magical potion that transforms her into a human and sets her sights on winning Shi-kyung over, but soon discovers she is living on borrowed time – if she doesn’t manage to win him over within 100 days, she will disappear forever.
| Also Known As: | Surplus Princess, The Mermaid |
| Directed by: | Baek Seung-ryong |
| Written by: | Park Ran, Kim Ji-soo |
| Starring: | Jo Bo-ah, On Joo-wan, Song Jae-rim, Park Ji-soo |
| Extended Cast: | Kim Seul-gi, Kim Min-kyo, Nam Joo-hyuk, Lee Sun-kyu, Jin Hee-kyung, Kim Jae-hwa, Han So-young, Ahn Gil-kang, Kim Jin-hee |
| Original network: | tvN |
| Original release: | 7 August 2014 – 9 October 2014 |
| No. of episodes: | 10 |
| Running Time: | 45-50 minutes |
| Distributor: | tvN |
