Summertime (2026) poster - Korean BL series on wavve - Yeo Eun-ho and Cha Do-hyun, childhood friends at high school

Summertime

On AirWeb Series🇰🇷EP 3

SYNOPSIS

Summertime (하절기) is a Korean Boys' Love series on wavve, adapted from a web novel by I Ro-mil. Its premise is built on an asymmetry the viewer sees from the first minute and one of the two boys does not.

Yeo Eun-ho (Kim Do-min) and Cha Do-hyun (Seong In-ho) have been friends for nineteen years. Eun-ho reads Do-hyun better than anyone: he knows the flawless student everyone sees at school is a performance. What he has never once suspected is that Do-hyun has spent years in love with him, and has been managing the friendship carefully enough to keep that hidden while slowly working his way closer.

Then Kwon I-hyun (Lim Young-min) transfers in, and the arrangement Do-hyun had been running stops working. The series is less interested in whether Eun-ho finds out than in what Do-hyun is willing to do to stop him finding out from someone else. TMDB's own keyword set is blunt about the register: obsession, possession, possessive man, jealousy.

Ten episodes, two a week, from 27 August 2026, directed by Bae Yoon-seo with a screenplay by Jo Yong. Kim Do-min carries the same character into a companion series, Winter Season.

CONTENT DETAILS

Native Title
하절기
Original Title
Summertime
Also Known As
Hajeolgi, Summertime The Series
Adaptation
Summertime is adapted from a Korean web novel by I Ro-mil. TMDB credits I Ro-mil for the novel and as the series creator, and tags the production with the keyword "based on web novel". No English-language edition of the source novel has been announced.
Genres
Childhood FriendsDramaForbidden LoveMysteryRomanceSchoolSlow BurnYouth
Themes
BL
Key Themes
Childhood FriendsHidden CrushObsession and PossessivenessUnrequited LoveTransfer StudentHigh School SettingFacade and ReputationJealousyComing of Age
Country
South Korea
Language
Korean
Director
Bae Yoon-seo
Screenwriter
Jo Yong
Original Author
I Ro-mil
Networks
Wavve
Seasons
1
Episodes
2 / 10
Aired Start
Aired End
Release Year
2026
Content Rating
MA

MAIN CAST & CHARACTERS

Kim Do-min, the South Korean actor who plays Yeo Eun-ho in the wavve BL series Summertime
Kim Do-min
Seong In-ho, the South Korean actor who plays Cha Do-hyun in the wavve BL series Summertime
Seong In-ho

SUPPORTING CAST

Lim Young-min, the South Korean singer and former AB6IX member who plays Kwon I-hyun in Summertime
Lim Young-min
Han Jong-kyu, the South Korean actor who plays Yu Won-ho in the wavve BL series Summertime
Han Jong-kyu
Park Hyun-ji, the South Korean actress who plays Cha Ji-hyun in the wavve BL series Summertime
Park Hyun-ji
Yoo Hyun-tae, the South Korean actor credited as the vice class monitor in the wavve BL series Summertime
Yoo Hyun-tae
Kim Min-tae, the South Korean actor credited as a classmate in the wavve BL series Summertime
Kim Min-tae

KEY TAKEAWAYS

  • Ten episodes, two a week: released on wavve from 27 August 2026, closing on 24 September 2026.
  • Novel adaptation: adapted from I Ro-mil’s Korean web novel, with Jo Yong writing the screenplay.
  • Possessive-crush premise: TMDB tags it with obsession, possession, possessive man and jealousy, which sets it apart from the softer school BL norm.
  • Nineteen years of friendship: the two leads have known each other their whole lives, and only one of them knows what it has become.
  • Idol casting: Lim Young-min, formerly of AB6IX and MXM, plays the transfer student who breaks the status quo.
  • Companion series: Kim Do-min is credited as the same character, Yeo Eun-ho, in a separate series called Winter Season.
  • Rated 19 in Korea: recorded here as MA under the BLGLFLIX rating vocabulary.
  • First lead for both: Summertime is the only credit recorded for Seong In-ho and one of three for Kim Do-min.
  • Directed by Bae Yoon-seo: five credits, directing all ten episodes.
  • Where to watch: wavve is the rights holder. No direct series page had been published when this entry was written, so no link is recorded yet.

EDITOR’S VERDICT

This is a first-look note, not a full review. Summertime premiered on 27 August 2026, the day this page was written, so only the opening episodes exist. No score is recorded yet. This section will be replaced once the season has finished.

What the premise is doing

Most school BL runs on mutual obliviousness. This one does not: the audience knows from the start, one lead knows, and the other does not. That turns the usual will-they-won't-they into something closer to suspense, because the question is not whether Do-hyun feels it but how long he can keep managing it, and what the managing costs.

The keyword set is unusually honest about the register. Obsession, possession, possessive man. A series that signals that up front is either going to interrogate it or romanticise it, and which one it does is the thing worth watching for.

The risk

Possessiveness written as devotion is the failure mode here. If the show frames Do-hyun's years of quiet management as romantic rather than as something Eun-ho has a right to be unsettled by, the premise curdles. Ten episodes at roughly short-form length is also very little room to land that distinction.

Where it sits

One of the more pointed Korean BL premises of 2026, and short enough to finish in an evening once it wraps on 24 September. Come back after that for a scored verdict.

EPISODE SCHEDULE

2 / 10 episodes aired · EP 3
EP 1
27 Aug 2026
Aired
EP 2
27 Aug 2026
Aired
EP 3
03 Sep 2026
Upcoming
EP 4
03 Sep 2026
Upcoming
EP 5
10 Sep 2026
Upcoming
EP 6
10 Sep 2026
Upcoming
EP 7
17 Sep 2026
Upcoming
EP 8
17 Sep 2026
Upcoming
EP 9
24 Sep 2026
Upcoming
EP 10
24 Sep 2026
Upcoming

FREQUENTLY ASKED QUESTIONS

What is Summertime about?

Yeo Eun-ho and Cha Do-hyun have been friends for nineteen years. Eun-ho knows his friend's perfect-student image is a front, but has no idea that Do-hyun has been in love with him for years and has been quietly working his way closer. A transfer student named Kwon I-hyun arrives and disrupts that.

Is Summertime a BL series?

Yes. TMDB tags it with boys' love (bl) and gay romance, and the central relationship is between the two male leads.

How many episodes does Summertime have?

Ten, released two a week from 27 August 2026 through to 24 September 2026.

When did Summertime premiere?

27 August 2026, with the first two episodes released together.

Where can I watch Summertime?

On wavve, the Korean streaming service. No direct series page had been published when this entry was written, so no link is recorded here yet.

Who stars in Summertime?

Kim Do-min as Yeo Eun-ho and Seong In-ho as Cha Do-hyun lead, with Lim Young-min as the transfer student Kwon I-hyun, Han Jong-kyu as Yu Won-ho and Park Hyun-ji as Cha Ji-hyun.

Is Summertime based on a novel?

Yes, a Korean web novel by I Ro-mil, who TMDB also credits as the series creator. Jo Yong wrote the screenplay.

Who directed Summertime?

Bae Yoon-seo directed all ten episodes.

What is Winter Season?

A separate series in which Kim Do-min is credited as the same character, Yeo Eun-ho. It is not yet recorded on BLGLFLIX; the relationship between the two productions is still being verified, so no link is claimed here.

What is the age rating?

The Korean certification recorded on TMDB is 19. BLGLFLIX records this as MA under its own rating vocabulary.

What does the Korean title mean?

The Korean title is 하절기, a formal term for the summer season. wavve markets it internationally as Summertime.

How long is each episode?

No official runtime has been published. TMDB lists the episode entries without runtime values, so this page leaves the field blank rather than estimating one.

Who produced Summertime?

TMDB lists no production company for the series, only wavve as the network. BLGLFLIX leaves the production company field blank rather than assuming wavve produced it in-house.

Posters, key art and metadata on this page come from TMDB and remain the property of their copyright holders, shown here to identify the work being discussed. This product uses the TMDB API but is not endorsed or certified by TMDB. BLGLFLIX is independent and unaffiliated with the rights holders or platforms named above; streaming links point only to licensed services. Full copyright, correction and takedown policy: Disclaimer.

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Metadata and images courtesy of TMDB. This product uses the TMDB API but is not endorsed or certified by TMDB. All posters, portraits, cover art, and promotional materials remain the property of their respective copyright holders and are shown solely to identify the works described. BLGLFLIX does not host or distribute any video content. See our DMCA / Copyright Policy.