Ongoing
“Cool girl Ibuki loves boyhood friend Tomoaki, who vows to surpass her coolness despite their unchanged 12cm height gap.”
12cm Promise with a Cool Girl
カッコいい女の子と12センチの約束
7.16
7,242 rank · 2,727 readers · 9 favorites
School
Comedy
Romance
Would You Love or Hate This?
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Based on your preference for character-driven stories with layered emotional arcs, this title's exploration of identity and belonging would deeply resonate. The pacing mirrors series you've rated highly, and its thematic depth aligns with your appreciation for nuanced storytelling...
However, the slow initial episodes might test your patience given your history of dropping shows that don't hook you early. The art style shift in the middle arc could also be a concern...
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Based on your library
Synopsis
Cool girl Ibuki loves boyhood friend Tomoaki, who vows to surpass her coolness despite their unchanged 12cm height gap.
Tomoaki Kamba admired his boyish childhood friend, Ibuki Tachibana, and promised to become "more cool" than her. However, four years have passed, and Ibuki has grown up to be an even more handsome girl! Their relationship is as unchanged as a 12cm height difference that cannot be filled...? The curtain rises on a pure love story about a cool girl who is sorely in love with a boy who wants to be cool! (Source: Ichijinsha, translated)
What people say
Community consensus
Derived from 3 sampled reviews
4.7
/10
What 3 readers settled on.
0%
recommend
Score distribution
median 4
mode 4
σ 0.94
Agreement
Strong agreement
σ 0.94 · scores cluster tight
The polarity gap
—
Not enough recommend signal yet
Score over time
↑ 0.67
Running avg · Jan 2025 → Oct 2025
Snap verdicts
· shortest highly-rated reviews
- 6 “This manga is quite similar to Shikimori - a strong, cool girl and a kind guy - except they’re not lovers (yet). The female lead is a princely, tomboyish girl, and the male lead is a dense guy...”
- 4 “Boring and cliche, it started off ok but a singular scene in chapter 11 made me drop it . Spoiler context: the MC and the girl goes to a haunted house, she's scares and he invites her home. The...”
- 4 “This manga is annoying. Not the good shoujo annoying, mind you, this manga plain sucks major dogshit at conflict- setting it up, introducing it, characters reacting to it, it being interesting or...”
Verbosity
Short · 33%
Medium · 33%
Long · 33%
Read Order & Related
Explore the 12cm Promise with a Cool Girl universe
Cast
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See all →Publication slate
A Manga Publication
- Published Aug 2023 – ongoing
- Source Manga media type
- Ref. BS-M70871 catalog