Long-awaited novelization of popular million-seller comic “Ultra-Fem Shishihara-kun” to be released on March 15!

IP platform company COMISMA Inc. (headquartered in Chiyoda-ku, Tokyo; CEO: Koki Sato; hereinafter "COMISMA") has adapted "Ultra-Fem Shishihara-kun", a serial manga that is popular on the manga app GANMA!, into its first novel titled “Ultra-Fem Shishihara-kun: Heart-Throbbing ♡ Island Arc”, which will be released on Sunday, March 15.

Long-awaited novelization of popular million-seller comic “Ultra-Fem Shishihara-kun” to be released on March 15!

The manga “Ultra-Fem Shishihara-kun” is a coming-of-age romantic comedy that revolves around the main character, high school boy Sota Shishihara, who is good at cooking and sewing and too feminine, but is actually a legendary former troublemaker, and his childhood friend Yurika Mito, who has no femininity but great athletic ability.
The manga has received a lot of positive feedback, mainly on social media, and the total number of copies published (paper and e-books combined) has exceeded 1 million.

The setting of the long-awaited novel “Ultra-Fem Shishihara-kun: Heart-Throbbing ♡ Island Arc” is a remote island they visit for a two-day school camp. The delicate emotions of the characters are vividly depicted along with the heart-throbbing situations that overflow with each turn of the page.

COMISMA will continue to pursue further possibilities for manga content through a variety of initiatives, while allowing more people to enjoy the works on GANMA!

[Overview of the Work]

■ Title: “Ultra-Fem Shishihara-kun: Heart-Throbbing ♡ Island Arc”
■ Author: Natsume Seiso
■ Original story and illustrations: Aimai me
■ List price: 1,430 yen (tax included)
■ Release date: March 15, 2026
■ Publisher: SB Creative Corp.
■ Label: GA Novels
■ On sale at: https://www.sbcr.jp/product/4815628161/
■ Synopsis:
He is great at cooking and sewing!
Sota Shishihara, a very feminine high school boy, is actually a legendary former troublemaker!
And now he will be visiting a remote island for a two-day school camp!
He knits bracelets with the hope of being in the same group as his girlfriend Yurika and friends Tatsuta and Moka, but…

The four of them enjoy a petting zoo and cooking dinner…
And the tent at night is full of exciting events!
The “preciousness” never stops, even on a remote island! A must-read, heart-throbbing novelization for all fans!


[Comment from author, Natsume Seiso]

Thanks to a wonderful opportunity, I was able to turn “Ultra-Fem Shishihara-kun” into a novel.
In this novel, Shishihara-kun and his friends go to a remote island for school camp!
The whole story is full of precious moments. There is a heart-throbbing storyline with the bracelets he knitted, wishing for everyone to be in the same group,
Shishihara-kun is led astray by the results of a fortune telling, but Yurika gently and impressively rescues him!
On the boat to the remote island, Tatsuta and Moka are in a sweet Nanja-Monja battle!
Of course, the excitement does not stop after arriving at the remote island!
I hope you enjoy Shishihara-kun’s world, which is full of charm, even when on a remote island.

[Comment from the author and illustrator of the original work, Aimai me]

An “Ultra-Fem Shishihara-kun” novel has been released!
I never would have thought that a novel would be published.
Please look forward to this edition set on a remote island, which is full of fresh stories that Shishihara-kun does not normally experience!

[About the manga app GANMA!]

GANMA! is a manga app that features over 400 original manga titles. Various genres of manga and webtoons including romance, suspense, romantic comedy, battle, isekai, horror, fantasy, and gag are released daily, and all original manga in serialization can be read for free, from the first issue to the latest.
GANMA! Premium, a subscription service that allows unlimited reading for a fixed monthly fee, allows users to read GANMA!’s original manga currently under serialization up to a month early, as well as all series of completed manga. In addition, the manga can be enjoyed without advertisements at all times.


■ Official website: https://ganma.jp/
■ Supported OS: iOS 15.0 or later, Android 7.0 or later
■ Supported browsers: Google Chrome, Firefox, Safari, etc.
■ Fees: Free; GANMA! Premium*: 680 yen/month; some G!TOON titles are available for a fee
*GANMA! Premium subscribers can read new issues of manga series up to one month before their standard release.
*The “illustration submission” function and “GANMA! Premium” are currently supported only in the app version.

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[For inquiries regarding this matter]
Public Relations, COMISMA Inc.
E-mail:pr@comicsmart.co.jp

■ Overview of COMISMA Inc.
Main Business: IP platform business
Headquarters Location: 9th Floor, PMO Jimbocho, 2-10-4 Kanda-Jimbocho, Chiyoda-ku, Tokyo 101-0051
Representative: Koki Sato, CEO
Company URL:https://www.comicsmart.co.jp/

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