Cheese in the Trap Webtoon vs. K-Drama: What Changed and Why It Matters

If you’ve finished the 2016 Cheese in the Trap drama, its final episode isn’t the ending of Soonkki’s original webtoon. The drama concluded while the comic was still being published.

The comparison is also about focus: Yoo Jung’s psychological role, Baek In-ho’s prominence, and the time each format gives Seol’s relationships. I’ll separate those storytelling questions from the production dispute reported at the time.

Spoiler level: Premise and adaptation history first. The section titled “How Do the Endings Differ?” contains spoilers for both versions. You can skip that section and go to the starting-point advice.

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Cheese in the Trap: Webtoon vs. K-Drama at a Glance

Original webtoon and 2016 television adaptation compared

Aspect	Original webtoon	2016 K-drama
Creator or production	Written and illustrated by Soonkki	Television adaptation broadcast by tvN
Format	Long-running Korean webtoon, published from 2010 to 2017	16-episode television series
Main narrative tension	Hong Seol’s attempts to understand Yoo Jung and the people around her	The same opening uncertainty; later emphasis on the love triangle drew criticism
Yoo Jung and Baek In-ho	Jung remains central to the story’s psychological questions	The attention given to In-ho became a subject of criticism
Ending	The original story reached its own conclusion in 2017	A television-specific, open-ended conclusion in 2016

The drama stars Kim Go-eun as Hong Seol, Park Hae-jin as Yoo Jung, and Seo Kang-joon as Baek In-ho.

You can find the original English edition on WEBTOON and the television adaptation’s official character information on tvN’s Cheese in the Trap page.

The Original Story Is About Trust Before It Is About Romance

Seol returns to university after a break and finds herself uneasy around Jung, the apparently ideal senior other people admire. His friendliness doesn’t immediately resolve her uncertainty. The official WEBTOON premise makes that tension part of the opening.

I’d read the central relationship through trust as well as attraction. A good public reputation, a considerate act, and Seol’s own experience of someone are different kinds of information. The long-form comic gives those questions room to accumulate through campus encounters and relationships.

What Changes When the Story Becomes a K-Drama?

The 16-episode adaptation keeps Seol’s uneasy first impressions and the relationships around her, but it compresses a much longer campus story. The important question is where it spends that shorter running time.

In the later episodes, the attention given to In-ho and the romantic triangle became a subject of criticism, as described in contemporary reporting on the production’s response.

My reading of the adaptation issue is that changing the attention given to Jung also changes the evidence viewers have for interpreting him. That’s an effect of narrative emphasis, rather than proof that compression itself makes an adaptation worse.

Yoo Jung vs. Baek In-ho: The Most Discussed Character Shift

Jung is central to Seol’s uncertainty about kindness and control. In-ho brings a contrasting presence, a history with Jung, and another emotional connection with Seol. Both belong to the original story.

The criticism concerned the balance between them: attention to In-ho’s background and feelings seemed to come at the expense of developing Jung’s motivations. Treat that as the reported adaptation debate, rather than a conclusion every viewer must share.

It also shouldn’t become an accusation against the cast. In a March 2016 Yonhap interview, Seo Kang-joon denied rumors that he had influenced the script to expand his role. Those rumors aren’t established facts.

Why Korean College Culture Matters to Both Versions

Jung is Seol’s sunbae, a senior in their university setting. That connection can carry social expectations without automatically giving him formal authority over her.

I find that context useful when thinking about the gap between his reputation and Seol’s uneasiness. Their relationship exists within a shared social world, rather than in isolation.

For the vocabulary, respectful address, and returning to university, use the Korean college-culture guide. This comparison focuses on what the two storytelling formats do with that setting.

Why the Timing of the Drama’s Ending Matters

The drama concluded in March 2016, before the original’s main-story finale in March 2017, followed by an epilogue. The comic’s completion was covered in Aju Business Daily’s contemporary report.

That timing matters, but it doesn’t mean Soonkki had no ending planned or that the production knew nothing about it. Her planned conclusion itself became part of the dispute, so publication timing alone can’t explain every creative decision.

What Soonkki Said About the Adaptation

The dispute included communication about scripts and the handling of Soonkki’s planned ending. In its February 29, 2016 apology, reported by Soompi, the production acknowledged failing to share scripts during production and supplying the ending script shortly before filming. It said the director had apologized personally and Soonkki had accepted.

That reported statement is more specific than saying the creator opposed adaptation altogether. It also doesn’t establish that any actor controlled the result. I’d keep the production’s account, the public criticism, and our interpretation of the finished story separate.

How Do the Endings Differ?

Spoiler warning: This section discusses the conclusions of the television drama and the original webtoon.

The K-Drama’s Ending

The drama concludes with Seol and Jung separated after their relationship reaches a painful turning point.

The story then moves forward three years.

Seol has continued with her life, while her attempts to contact Jung have remained unanswered.

Near the end, an email she sent him is finally marked as read.

That detail suggests a possible reconnection without showing a fully established reunion.

The result is an open ending: the relationship is not presented as simply forgotten, but the drama does not give viewers a complete on-screen resolution.

The separation, three-year time jump, and email detail were documented in Seoul Shinmun’s contemporary finale report. The possibility of reconnection is an interpretation of that closing signal, rather than a fully depicted reunion.

The Webtoon’s Ending

The webtoon continued for more than a year after the drama concluded.

Its main story eventually reached Seol’s university graduation, bringing the long-running college narrative to a close.

Rather than reproducing the drama’s unresolved separation, the original offers a more affirmative continuation of Seol and Jung’s relationship. The final print volume’s publisher-supplied synopsis on YES24 describes Seol embracing Jung when he arrives at her graduation.

The difference is not merely whether the final scene feels happier.

The original has more time to build toward its conclusion through the characters’ accumulated experiences, decisions, and changing understanding of one another.

The webtoon’s March 2017 finale, including Seol’s graduation and the characters’ conclusions, was covered by Aju Business Daily.

For someone who finished the drama and wants to know what happens in the source material, the important answer is this:

The drama’s final episode is not the ending of the original webtoon.

Reading the completed webtoon offers a different conclusion and a fuller account of the relationships that lead to it.

Which Version Should You Start With?

Start with the webtoon for the longer development of Seol’s relationships, the uncertainty around Jung, and the original conclusion.

Start with the 2016 drama if you’d prefer performances and a shorter screen version. Kim Go-eun, Park Hae-jin, and Seo Kang-joon portray the central characters, but its ending belongs to that adaptation.

For how the series felt to watch, my 2016 K-drama review discusses Jung’s polished smile, Seol’s hesitation, and the warmth I found in In-ho’s rough kindness, without revealing the ending.

If you’ve already watched it, I’d read from the beginning rather than look for a final comic chapter to attach to the show. The difference in emphasis matters before the ending too.

What About the 2018 Cheese in the Trap Movie?

There is one more version that can cause confusion.

Cheese in the Trap also received a South Korean film adaptation released in 2018.

Park Hae-jin returned as Yoo Jung, but Oh Yeon-seo played Hong Seol instead of the drama’s Kim Go-eun.

The film is a separate adaptation, not a continuation of the 2016 television series.

The Korean Film Council’s film information page confirms its release and principal cast.

For my more mixed response to the film, read my 2018 movie review. I discuss why its uneasy tension stayed with me and where the short running time left the relationships needing more room.

So if you encounter two live-action versions with Park Hae-jin, check whether you are looking at the 2016 drama or the 2018 film before comparing them with the webtoon.