Promise of 12cm with Cool Girl

A Cool Girl and a 12cm Promise

Promise of 12cm with Cool Girl

Promise of 12cm with Cool Girl

A Cool Girl and a 12cm Promise

Kakkoi Onnanoko to 12 cm no Yakusoku • Kakkoii Onnanoko to 12-centi no Yakusoku • 12cm Promise with a Cool Girl • Una chica genial y una promesa de 12 cm • カッコいい女の子と12センチの約束 • Lời hứa 12cm với cô nàng ngầu lòi • ?12cm Promise With a Cool Girl
Origination: Manga
Demographic: Josei
Published: 2023
Status: 📖 Ongoing
Translation: 📖 Ongoing
Ranked: #2,579
Followed by 7,530 users
(105 ratings)

Tomoaki Kanba 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!-

Serialization of the Twitter webcomic A Story About Becoming Cooler Than the Cool Girl.

Photos

Loading photos

More Info

Authors: Ziki Masaya
Artists: Ziki Masaya
Genres: Comedy, Drama, Romance, Slice of Life
Theme: School Life
Publishers: Gamma!

Tags

  • Tall Female Lead
  • High School Student/s
  • Popular Female Lead
  • Cool Female Lead
  • Beautiful Female Lead
  • Childhood Friend/s
  • 21st Century
  • Androgynous Female Lead
  • Childhood Promise
  • Japan
  • Short-Haired Female Lead
  • Short Male Lead
  • Time Skip in First Chapter/Prologue
  • High School Student Female Lead
  • High School Student Male Lead
  • Masculine Female Lead
  • Height Difference
  • Dense Male Lead
  • Female Lead Falls in Love First
  • Tall Female Short Male
  • Reverse Trap

Referrers

Raws

Trackers

ShopRetail

Loading reviews...

Loading comments...

Recommendations

Reader-picked titles with similar content, themes, and overall vibe.

FAQFeedbackStatus PageRoadmapChangelogAboutCreditsDMCATerm of UsePrivacy
© 2021-2026 | Last Updated:
Build: 5084 Development Activity

Reviews

Write a review for Promise of 12cm with Cool Girl

Sign in to share what worked, what didn't, and whether you would recommend it.

Most Helpful Reviews

Dante381 avatar

Dante381

2 reviews1,213 follows

Posted 12:17 PM · Jun 20, 2026

Recommended
9/10
Reviewed through Ch. 66 · 94%

Untitled review

Completely disregard Tjo's "review", check his profile for the rest of his" reviews" if you wanna get a chuckle, it's just garbage after garbage comments lmao. If you're into tomboys or if you just want a great romcom read this, it's worth it, it's great.

Was this review helpful?

ReishiW avatar

ReishiW

2 reviews154 follows

Posted 8:11 AM · Jun 9, 2026

Recommended
9/10
Reviewed through Ch. 66 · 94%

Untitled review

I'm a straight guy and this manga straight, honestly I get why it's sometimes called "yoai bait" but it's really cute and wholesome atp and like reminding me my single ah so, if your into cute tomboys girlfriend you outta read this. (Imma say it again. this manga js straight)

Was this review helpful?

Tjo avatar

Tjo

13 reviews141 follows

Posted 1:35 PM · May 29, 2026

Community Review
Reviewed through Ch. 61 · 87%

Untitled review

author reeeeeaaally didnt want the yaoi tag cause this is basically it

Was this review helpful?

Comments (3)

Share your thoughts on the story progression, the comic's current state, or anything else.