Popular Picture Book Author KORIRI's New Book "Nyan-ko Kazoku: Ofuro no Jikan" to be Released Around June 11, 2026!

Key facts

  • Popular Picture Book Author KORIRI's New Book "Nyan-ko Kazoku: Ofuro no Jikan" to be Released Around June 11, 2026!
  • IP4 Inc. will release the new picture book "Nyan-ko Kazoku: Ofuro no Jikan" by KORIRI, the author of the popular "Sekai de Ichiban Fushigi na Neko Sekai" series, around June 11, 2026. This book, published by Kyoiku Geikijo, is designed to help children enjoy bath time and learn through a story about a family of cats.
  • Source: PR Times
  • Date: June 11, 2026

Direct answer

IP4 Inc. will release the new picture book "Nyan-ko Kazoku: Ofuro no Jikan" by KORIRI, the author of the popular "Sekai de Ichiban Fushigi na Neko Sekai" series, around June 11, 2026. This book, published by Kyoiku Geikijo, is designed to help children enjoy bath time and learn through a story about a family of cats.

Citation
Popular Picture Book Author KORIRI's New Book "Nyan-ko Kazoku: Ofuro no Jikan" to be Released Around June 11, 2026! (June 11, 2026), PR Times
Source
PR Times
Date
June 11, 2026
IP4 Inc. will release the new picture book "Nyan-ko Kazoku: Ofuro no Jikan" by KORIRI, the author of the popular "Sekai de Ichiban Fushigi na Neko Sekai" series, around June 11, 2026. This book, published by Kyoiku Geikijo, is designed to help children enjoy bath time and learn through a story about a family of cats.

📋 Article Processing Timeline

  • 📰 Published: June 11, 2026 at 21:00
  • 🔍 Collected: June 11, 2026 at 12:21
  • 🤖 AI Analyzed: June 12, 2026 at 16:51 (28h 30m after Collected)
IP4 Inc. (Headquarters: Toshima-ku, Tokyo, President: Tsuyoshi Kohama) is pleased to announce the upcoming release of "Nyan-ko Kazoku: Ofuro no Jikan" (Kyoiku Geikijo), a new picture book by KORIRI, the author of the "Sekai de Ichiban Fushigi na Neko Sekai" series, for which IP4 Inc. handles the licensing. The release is scheduled to begin sequentially around Thursday, June 11, 2026.

Details here!

The Nyan-ko family is a close-knit family. It's almost bath time. Little Brother Nyan doesn't want to go to the bath yet because he still wants to play. But wait! Big Sister Nyan says there's a lion in the bath!? Is it true? What happens when they go into the bath...

Characters appearing in this work

【Product Details】

■ Title: Nyan-ko Kazoku: Ofuro no Jikan

■ Price: 1,540 yen (tax included)

■ Target Age: 3-4 years old / Lower elementary school grades / Middle elementary school grades

■ Size: 26cm x 21cm x 1cm

■ Pages: 24 pages

▼ Kyoiku Geikijo Website
https://www.kyouikugageki.co.jp/bookap/detail/2320/

▼ Other EC Sites
Amazon: https://www.amazon.co.jp/dp/4774623830
Rakuten: https://books.rakuten.co.jp/rb/18628426/

*Will be released sequentially at bookstores and online retailers nationwide.

*Stock availability may vary by store.

【What is "Sekai de Ichiban Fushigi na Neko Sekai"?】
This is a world created by author KORIRI, who imagined what life would be like if cats lived like humans. Once you peek in, you can't escape! Would you like to take a peek into this world of human-like cats?

【Author KORIRI Profile】
Illustrator.
Guided by her beloved cat Nyanko-san, who crossed the rainbow bridge, she now lives with two rescued cats, Haruo and Mikan.
The "Sekai de Ichiban Fushigi na Neko Sekai" series, which depicts a world where cats live like humans, started with LINE stickers and has been widely developed through various merchandise, illustration collections (Tatsumi Publishing), picture books such as "Neko no Youshokuyasan," "Neko no Ramen-yasan," "Neko no Sushi-yasan," "Neko no Cake-yasan" (Kin no Hoshi Sha), and "Neko Ouji to Umi no Ikimono" (Magazine House).
Neko no Youshokuyasan Neko no Ramen-yasan
Neko no Sushi-yasan Neko no Cake-yasan
Neko Ouji to Umi no Ikimono
Works for which she provided cover illustrations include:
"Dor neko Shinkaron" (Author: Akira Numata / Publisher: Sankensha)
"Haken Neko ~Kainushi wa, Anata ni Kime mashita! ~"
"Haken Neko ~NNN to Noraneko no Kyouji~"
"Haken Neko ~Anata no Omoi Tsunagimasu~"
"Haken Neko ~Koyoi, Noraneko-tachi ni Shiawase o~"
(All by Kazuya Nakahara / Publisher: Futami Shobo)
And others.

【Official SNS】
・X: @koriri222
・Instagram: @koriri222
・Sekai de Ichiban Fushigi na Neko Sekai Official X: @yonimohushigina

【About IP4 Inc.】
IP4 Inc. is a company that operates a licensing business, which involves the brokerage and sale of character copyrights, and a capsule vendor business, which sells capsule toys for numerous characters and brands.
Company Name: IP4 Inc.
Head Office Location: 5-1-3 Nishi-Ikebukuro, Toshima-ku, Tokyo, Metro City Nishi-Ikebukuro
Representative Director: Tsuyoshi Kohama
Business Activities: Licensing business (brokerage and sale of character copyrights, etc.), Capsule vendor business
Established: May 2002
Phone Number: 03-5951-1940
HP: https://www.ip4.co.jp/
Inquiries: rights@ip4.co.jp
ⓒKORIRI

FAQ

When can I purchase the new picture book "Nyan-ko Kazoku: Ofuro no Jikan"?

It will be sequentially released around June 11, 2026, at bookstores and online retailers nationwide.

Who is the author, KORIRI, of this picture book?

KORIRI is an illustrator known for the "Sekai de Ichiban Fushigi na Neko Sekai" series, which depicts a world where cats live like humans.

What is the content of the picture book about?

It's a story about a younger brother cat who dislikes baths and an older sister cat who tempts him by saying there's a lion in the bath, helping children enjoy bath time.

What is the target age range?

The book is targeted at children from around 3-4 years old up to middle elementary school grades.

What kind of company is IP4 Inc.?

IP4 Inc. is a company engaged in the licensing business, handling brokerage and sales of character copyrights, and the capsule vendor business, selling capsule toys.