Bae Yoon-seo, the South Korean director of the wavve BL series Summertime

Bae Yoon-seo

BIOGRAPHY

Bae Yoon-seo (Korean: 배윤서) is a South Korean director, screenwriter, editor and producer working almost entirely in Korean boys’ love. Five productions are on record, and on most of them she holds more than one job.

Her main body of work is with STRONGBERRY and Matchbox. She directed and wrote all twelve episodes of Sweetheart Service (스윗하트서비스), released on YouTube from 8 May 2025, in which a fake dating contract between a job seeker and a developer who has had enough of marriage starts turning into the real thing. She then directed, wrote and edited the feature version, Sweetheart Service: The Movie, released on 9 November 2025. In October 2025 she took an executive producer credit on Kiss Kiss Sxx (키스키스X스), a twenty-eight part omnibus for Shortime built from eight separate short love stories.

In 2026 she moved to a larger production. She directs all ten episodes of Summertime (하절기) for wavve, produced by OAK Company with KT Studio Genie and SAMBOK Production, from a screenplay by Jo Yong and a web novel by I Ro-mil. Yeo Eun-ho and Cha Do-hyun have been friends for nineteen years, and Eun-ho believes he can read his friend completely, including the fact that Do-hyun’s flawless reputation at school is a performance. What he has never noticed is that Do-hyun has been in love with him the whole time. Kim Do-min plays Eun-ho and Seong In-ho plays Do-hyun. A further series, 그늘 아래 피는, is in production with STRONGBERRY and Matchbox.

No biography, date of birth or place of birth appears in any source we accept, and those fields are deliberately empty.

BLGLFlix editorial view

Our page called her “a South Korean director with five credits”. That undersells it considerably. Across those five productions she is credited as director, screenwriter, editor and executive producer. On the Sweetheart Service film she holds three of those jobs at once. That is not a director-for-hire; that is someone making the thing more or less end to end, which in Korean short-form BL is closer to the norm than most coverage of the genre admits.

The 2026 move is the story on this page. Everything before Summertime was STRONGBERRY and Matchbox, distributed on YouTube and Shortime, at short-form scale. Summertime is ten episodes for wavve, with KT Studio Genie among the producers, which is a telecom-backed studio operation rather than a boutique. Same director, materially different budget bracket. If you want a single example of Korean BL moving from the self-published end of the market into the platform economy, this filmography is it.

It is also the point we made on the profile for Jo Yong, this series’ screenwriter, and should keep making: Korea does have an openly labelled BL pipeline, and it runs through wavve. We spent several profiles on this site describing Korean queer material as something that hides inside network dramas under keywords like bromance. That is true of the terrestrial and cable networks. It is not true of the streamers, and the people staffing the streamers’ BL slate, like this director, come up through the small studios rather than out of nowhere.

One production worth flagging on its own. Kiss Kiss Sxx is an omnibus of eight separate short stories running to twenty-eight parts, and it carries both the boys’ love and the girls’ love keyword. Anthologies that cover both are rare enough that we would treat it as its own entry rather than a footnote here, and it is not yet in this database.

Neither, for that matter, are Sweetheart Service, its feature version, or the series currently in production. Four titles by this director are missing from a site that catalogues exactly this. We have logged them all.

PROFILE DETAILS

Native Name
배윤서
Real Name
Bae Yoon-seo
Pronouns
she/her
Gender
Female
Nationality
Debut
2025 — Sweetheart Service (2025), director and screenwriter
Years Active
2025-present
Languages
Korean

FILMOGRAPHY — TV SERIES (1)

TRIVIA

On Sweetheart Service: The Movie she is credited three times over, as director, writer and editor.

Four of her five productions are with STRONGBERRY and Matchbox. Summertime is the exception.

Summertime is her first credit for a major streaming platform, with a telecom-backed studio among its producers.

Kiss Kiss Sxx runs to twenty-eight parts built from eight separate stories, and carries both the boys’ love and the girls’ love keyword.

Sweetheart Service exists in two forms, a twelve episode series and a feature film, both directed and written by her in the same year.

Summertime is adapted from a web novel, which is unusual for the Korean short-form BL she had been making until then.

A further series, 그늘 아래 피는, is recorded as in production with the same two companies she has worked with throughout.

Her name is also recorded in Chinese characters as 裴允书 on the international database.

FREQUENTLY ASKED QUESTIONS

Who is Bae Yoon-seo?

A South Korean director, screenwriter, editor and producer working almost entirely in Korean boys’ love, with five productions on record.

What has she directed?

Sweetheart Service (2025, twelve episodes, YouTube), Sweetheart Service: The Movie (2025), Summertime (2026, ten episodes, wavve) and the in-production series 그늘 아래 피는. She also holds an executive producer credit on the omnibus Kiss Kiss Sxx (2025).

Does she do more than direct?

Yes. She wrote as well as directed Sweetheart Service and its feature version, and on the film she is also credited as editor.

What is Summertime about?

Yeo Eun-ho and Cha Do-hyun have been friends for nineteen years. Eun-ho believes he knows everything about his friend, including that his flawless school reputation is a performance, but he has never noticed that Do-hyun has been in love with him the whole time. Kim Do-min plays Eun-ho and Seong In-ho plays Do-hyun.

Who else made Summertime?

Screenplay by Jo Yong, from a web novel by I Ro-mil, produced by OAK Company with KT Studio Genie and SAMBOK Production for wavve. Ten episodes.

What is Kiss Kiss Sxx?

A twenty-eight part omnibus for Shortime made up of eight separate short love stories. It carries both the boys’ love and the girls’ love keyword, which is unusual.

Which company does she usually work with?

STRONGBERRY and Matchbox, on four of the five productions. Summertime is the exception and is a considerably larger operation.

Are her earlier series covered on this site?

Not yet. Sweetheart Service, its feature version, Kiss Kiss Sxx and the in-production series are all missing from this database and have been logged.

Why is there no date of birth on this page?

None is published in any source we accept, so the field is left empty rather than estimated.

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