
Mr. Heart
Pacemaker for him.
On W-STORY
A warm, romantic comedy about two runners who grow closer through shared pursuit, structured around the gradual intimacy of a pacemaker relationship.
Jin-won cares about one thing only: running. When he finds himself in a slump, his coach suggests Sang-ha as a pacemaker. Though Sang-ha's efforts are initially ignored, they find themselves growing closer and closer over time.
Questions people ask
Does Mr. Heart leave you hopeful? Yes, very. More hopeful than 92% of series.
Is Mr. Heart violent? Barely. Less violent than 89% of series.
Is Mr. Heart easy watching? Yes. More comforting than 86% of series.
Is Mr. Heart scary? Barely. Less frightening than 76% of series.
Is Mr. Heart sad? Not especially. Less sad than 68% of series.
These describe how the series comes across across its whole run, compared with other well-known series. They are not a content list — nothing here was counted or checked episode by episode, so for age-suitability or specific content use a classification board or a dedicated content-warning service.
Cinnamon Score
How much this series gives you that nothing else will, and whether it delivers.
Conventional, and it does not land.
How unlike any other series this one feels
How much more it delivers than it promises
How much audiences actually like it
Ensemble
Like Mr. Heart
Nearest across the full emotional profile.
Same Mood as Mr. Heart
Nearest on what's most distinctive about this one.
Like Mr. Heart, But Darker
Similar, pushed toward heavier and more intense.
Like Mr. Heart, But Lighter
Similar, pushed toward warmer and easier.
Like Mr. Heart, But Less Popular
Same territory, far fewer people have seen it.
























































