# One Sunny Day
**One Sunny Day** (좋은 날, literally *A Good Day*) is a 2014 South Korean romantic web series starring [So Ji-sub](https://www.edgepedia.org/so-ji-sub) and Kim Ji-won as two strangers who fall in love over a few days on [Jeju Island](https://www.edgepedia.org/jeju-island).[1](https://eiga.com/drama/series/One_Sunny_Day_Drama/) • [2](https://watch.plex.tv/en-GB/show/one-sunny-day) It ran for 10 short episodes on the streaming service Line TV from December 19, 2014 to January 10, 2015, was available only to audiences in Thailand rather than broadcast in South Korea, and was later released on [DramaFever](https://www.edgepedia.org/dramafever).[3](https://play.google.com/store/tv/show/One_Sunny_Day?hl=en_SG&id=E38B0671AE1BF0E3MV)
| Key fact | Detail |
|---|---|
| Original title | 좋은 날 (*Joheun Nal*, "A Good Day"); English title One Sunny Day[1](https://eiga.com/drama/series/One_Sunny_Day_Drama/) • [4](https://koreasowls.fr/review-drama-one-sunny-day/) |
| Format | 10-episode web series; episode length reported as 14 minutes[2](https://watch.plex.tv/en-GB/show/one-sunny-day), 12 minutes[4](https://koreasowls.fr/review-drama-one-sunny-day/), or 15 minutes[5](https://lndmmv.blogspot.com/2015/08/?m=0) by different sources |
| Broadcast | Line TV (Thailand), December 19, 2014 to January 10, 2015; not aired in South Korea; later on DramaFever[3](https://play.google.com/store/tv/show/One_Sunny_Day?hl=en_SG&id=E38B0671AE1BF0E3MV) |
| Director and writer | Kwon Hyuk-chan (direction), Lee Mi-na (screenplay)[1](https://eiga.com/drama/series/One_Sunny_Day_Drama/) |
| Leads | So Ji-sub as Kim Ji-ho, a heartbroken man; Kim Ji-won as the woman he keeps encountering[2](https://watch.plex.tv/en-GB/show/one-sunny-day) |
| Setting | Jeju Island, where the two leads are stranded after a robbery[2](https://watch.plex.tv/en-GB/show/one-sunny-day) |
| Production | Hwa & Dam Pictures[1](https://eiga.com/drama/series/One_Sunny_Day_Drama/) |
## Spoilers
### Premise and story
The male lead, Kim Ji-ho (So Ji-sub), works at an event production company. Recently out of a relationship, he travels to Jeju Island on a business trip partly to change his mood, arriving without having booked a place to stay; a taxi driver directs him to a guesthouse called Santiago.[6](https://abema.tv/channels/asia-drama/slots/9vMP63g2UoLUMu) There he keeps running into a young woman (Kim Ji-won). Both are robbed, his wallet and her phone are stolen, and they end up sharing the same guest house, depending on each other for a day. As their stay on the island continues, she helps him recover from his broken heart and the two fall in love.[2](https://watch.plex.tv/en-GB/show/one-sunny-day)
The series opens without introduction, dropping viewers directly into the characters' lives in a slice-of-life register, and follows the pair through small mishaps as they get to know each other.[4](https://koreasowls.fr/review-drama-one-sunny-day/) A reviewer described its premise as a man who comes to Jeju after a breakup and a woman who reaches out first, slowly matching each other's emotional temperature without any major incident.[7](https://bolkkapick.com/works/one-sunny-day-2014/)
## Cast and production
So Ji-sub and Kim Ji-won head the cast. Supporting roles include Lee Jong-hyuk as Young-ho, Im Joo-eun as Ji-ho's ex-girlfriend, Kim Mi-kyung as Lee Cheon-won, Kim Young-woong as Hyun-chul, and [Lee Jong-hyun](https://www.edgepedia.org/lee-jong-hyun) and Baek Seung-hee as a couple.[2](https://watch.plex.tv/en-GB/show/one-sunny-day) • [1](https://eiga.com/drama/series/One_Sunny_Day_Drama/) Kwon Hyuk-chan directed and Lee Mi-na wrote the screenplay.[1](https://eiga.com/drama/series/One_Sunny_Day_Drama/)
The series belongs to the first wave of Korean web dramas. A JoongAng Daily report in November 2014 described these short internet dramas as part of "snack culture," easy-to-consume web content, and noted that a season cost about as much to produce as a single music video or a single episode of a 60-minute full-length drama, which allowed established film actors to appear alongside rising names.[8](https://www.koreajoongangdaily.com/korea/web-dramas-hook-koreas-youth/10347438) One Sunny Day was unusual within that wave for pairing two established leads in a near-film-length total runtime; as one viewer put it, ten 15-minute episodes amount roughly to the length of a movie.[5](https://lndmmv.blogspot.com/2015/08/?m=0)
## Reception
**Critical response.** A retrospective Korean review identified the series' defining choice as a deliberately quiet narrative: rather than strong conflict or a dense romance plot, it offers Jeju Island's sea and forest scenery and the calm rapport of two decent adults sharing time. The same review recorded the split in reactions. Praise centered on the scenery, Kim Ji-won's natural and proactive character, who speaks first to a stranger and expresses her feelings without being overly passive, and the ease of finishing a light series without complex setup. Criticism held that so little happens that the story feels empty, that repeated flashbacks and slow scenes weaken even the format's concision, and that the short length leaves the female lead's personal story underdeveloped, reducing her to a function of the man's recovery.[7](https://bolkkapick.com/works/one-sunny-day-2014/)
Aggregated user ratings are modest. Plex lists an audience score of 6.9 out of 10.[2](https://watch.plex.tv/en-GB/show/one-sunny-day) On the Japanese database eiga.com the series holds a 2.5 average from a single review, which recalled it as a brief watch that left little impression.[1](https://eiga.com/drama/series/One_Sunny_Day_Drama/)
## Context and related titles
One Sunny Day should not be confused with similarly titled Korean productions. *One Fine Day* (어느 멋진 날) is a 2006 MBC television drama starring [Gong Yoo](https://www.edgepedia.org/gong-yoo) and [Sung Yu-ri](https://www.edgepedia.org/sung-yu-ri) about a brother and sister reunited in Australia and Korea.[9](https://content.mbc.co.kr/program/drama/2604673_64284.html) *Sunny Day* is a 2025 South Korean theatrical film directed by Lee Chang-moo, released February 19, 2025 on 349 screens with 18,881 admissions as of September 2026.[10](https://www.koreanfilm.or.kr/eng/films/index/filmsView.jsp?movieCd=20246270) Within the web-drama field itself, One Sunny Day appeared in the same 2014 season as titles such as *Love Cells*, another short romance web series noted in year-end coverage.[11](https://thefangirlverdict.com/2014/12/30/year-in-review-2014/)
## References
1. [ワン・サニーデイ One Sunny Day, 映画.com](https://eiga.com/drama/series/One_Sunny_Day_Drama/)
2. [One Sunny Day (2014), Plex](https://watch.plex.tv/en-GB/show/one-sunny-day)
3. [One Sunny Day, Google Play TV](https://play.google.com/store/tv/show/One_Sunny_Day?hl=en_SG&id=E38B0671AE1BF0E3MV)
4. [Review Drama: One Sunny Day, K.OWLS](https://koreasowls.fr/review-drama-one-sunny-day/)
5. [One Sunny Day 좋은 날 (2014) review, Liking Necks Doesn't Make Me a Vampire](https://lndmmv.blogspot.com/2015/08/?m=0)
6. [ワン・サニーデイ～One Sunny Day～ 第1話, ABEMA](https://abema.tv/channels/asia-drama/slots/9vMP63g2UoLUMu)
7. [좋은 날(2014) 제주에서 천천히 가까워지는 10부작, 볼까픽](https://bolkkapick.com/works/one-sunny-day-2014/)
8. [Web dramas hook Korea's youth, Korea JoongAng Daily](https://www.koreajoongangdaily.com/korea/web-dramas-hook-koreas-youth/10347438)
9. [어느 멋진 날 (One Fine Day), MBC Global Media](https://content.mbc.co.kr/program/drama/2604673_64284.html)
10. [Sunny Day (2025), Korean Film Council](https://www.koreanfilm.or.kr/eng/films/index/filmsView.jsp?movieCd=20246270)
11. [Year In Review: 2014, The Fangirl Verdict](https://thefangirlverdict.com/2014/12/30/year-in-review-2014/)
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*Topic: Encyclopedia › Arts and culture › Screen and stage › Film and television › Series and fictional screen worlds › Unscripted, reality, and web-native series › Web-native and streaming-original series › Korean and East Asian web series*
*Initially written Oct 3, 2026 · Reviewed: Oct 25, 2026 · Edited: Oct 15, 2026; Oct 25, 2026; Nov 1, 2026 · Last review: Oct 25, 2026*
*Copyright 2026 EdgeChat AI, a subsidiary of Biostate AI.*
License: Edgepedia Community License 1.0, https://www.edgepedia.org/edgepedia/license