Video now available! A new author’s message for “Collit 1: The Mechanical Heart” has been released!

[Video now available!] A new message from the author of “Collit 1: The Mechanical Heart” has been released!
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Gakken Holdings Co., Ltd. Press release: October 1, 2025 To Members of the Press [Video now available!] A new author’s message for “Collit 1: The Mechanical Heart” has been released! An epic story that began at the “end” – a message from author TERUKO has been released. A video featuring original music by Gen Okuda is also available! Gakken Holdings Co., Ltd. (Shinagawa, Tokyo / President and CEO: Hiroaki Miyahara), a group company of Gakken Holdings Co., Ltd. Gakken (Shinagawa, Tokyo; President and CEO: Tatsuya Nanjo) released a new message from the author of “Collit 1: Mechanical Heart” (released July 31, 2025) on Wednesday, October 1, 2025.
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▲ “Collit 1: Clockwork Heart” Volumes 1 and 2 ■New message from author TERUKO released! We’ve received a new message from author TERUKO about the popular “Collit 1: Mechanical Heart”! It was the final scene of this story that inspired me to write “Korrit.” This fragmentary yet vivid scene was unlike any ending to any story I knew, and I wanted to read the story leading up to it, so I quickly put it down on paper. However, it turned out to be a much larger story than I knew how to handle. It would take a considerable amount of time to complete. So, after 18 years, I finally completed a story that I had woven in a straight line toward the ending I wanted to read, not as an author, but as a reader. Because I started writing with the end in mind, the story expands and accelerates as it progresses. Music holds a very important meaning in the world of “Korrit,” and like music, the story also grows stronger, building toward its final movement, the end. When you finish reading, you’re left with a lingering impression, as if you’d heard a whole song. Hope and despair intersect, yet the deep bond between humans and the Collit remains strong. Why did humans create the Collit, which has the same emotions and feels the same pain as humans? What is the greatest secret hidden within? This is a long fantasy that comes at a time when people are whispering about a decline in reading, but I believe that if you open this story, which began at the end, you will enjoy it all the way to the end. ■A video is now available in which you can enjoy original music by pianist and composer Gen Okuda! A video introducing the contents of “Korrit” is now available on Gakken’s official YouTube channel, “Gakken Millions”! The music for the video was created by pianist and composer Gen Okuda. Music is an important element of the story in “Korrit,” and each of the main characters has a favorite instrument. In the sections of the music video introducing Ipa, Nii, and Sak, the melodies played on the violin, piano, and guitar, which are each their specialty, overlap with each other…it’s structured in such a way that it’s as if you’re imagining a session between the three of them. Be sure to check out this wonderful music, which perfectly complements “Corritt,” and evokes the thrill of adventure and a sense of grandeur, along with the story itself♪ ▼Click here for the video▼
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https://www.youtube.com/watch?v=ftv07sPLOxE ■Story The story is set 3,000 years in the future. Humanity has built a dome on Venus to raise “Korritts,” beings that serve humanity. Born in the “Factory” at the center of the dome, Ipa, a Koritt, lives with his beloved family and happily attends school with his friends Nii and Sak. However, all he is taught there is “obedience to humans.” Ipa, despite having the same appearance and heart as a human, begins to question his existence, knowing that he is nothing more than a fake. “What on earth was I born for?” Collit normally wouldn’t have such a question. One day, while he was spending his days wondering, “Why is it only me…?”, an event occurred that shook Ipa’s life, and he headed alone to a forbidden factory. What he saw there was… “Often, you can’t choose your environment. What’s important is how well you can remain within that environment.” This is where a moving fantasy woven by overwhelming imagination, featuring humans and Collits, begins.
https://prcdn.freetls.fastly.net/release_image/2535/8222/2535-8222-77f8470c07509fac923af3da17143fa6-1594×1127.jpg ▲The relationships between the characters are also interesting.
https://prcdn.freetls.fastly.net/release_image/2535/8222/2535-8222-11ceb3364834217cf1ba1fa084d5682b-1594×1127.jpg ▲The story begins with a striking scene of a boy chasing an eyeball.
https://prcdn.freetls.fastly.net/release_image/2535/8222/2535-8222-fa04359ae6111f3ae2058084454ee00c-1594×1127.jpg ▲A session between Ipa and Nii. Please listen to the music in the video and try to imagine it. [Product Overview]
https://prcdn.freetls.fastly.net/release_image/2535/8222/2535-8222-b5abab653631c5c2433bb0c7b66aacfc-854×1224.jpg “Collit 1. Volume 1: Mechanical Heart” Author: TERUKO Illustrations: Rokushichi Shitsu Price: ¥1,595 (tax included) Release date: July 31, 2025 Format: A5 / 286 pages ISBN: 978-4-05-206184-4 ▼Gakken Publishing Site https://hon.gakken.jp/book/1020618400 【Purchase here】
・Amazon:https://www.amazon.co.jp/exec/obidos/ASIN/4052061845/ ・Rakuten Books:https://books.rakuten.co.jp/rb/18231187/
・Kindle:https://www.amazon.co.jp/dp/B0FK1S2Z1P/ ・Rakuten
Kobo:https://books.rakuten.co.jp/rk/6045ce1acdab32c1a9b0d80e2b96b6b5/
https://prcdn.freetls.fastly.net/release_image/2535/8222/2535-8222-d9d873df2d1e88c696656a84eeda6881-855×1224.jpg “Collit 1. Part 2: The Clockwork Heart” Author: TERUKO Illustration: Rokushichi Shitsu Price: ¥1,595 (tax included) Release date: July 31, 2025 Format: A5/276 pages ISBN: 978-4-05-206185-1 ▼Gakken Publishing Site https://hon.gakken.jp/book/1020618500 [Click here to purchase] ・Amazon:https://www.amazon.co.jp/exec/obidos/ASIN/4052061853/ ・Rakuten Books:https://books.rakuten.co.jp/rb/18231188/
・Kindle:https://www.amazon.co.jp/dp/B0FJZNHKG3/ ・Rakuten
Kobo:https://books.rakuten.co.jp/rk/ee7c6aa7b3713258aab2b2c3614a8cc9/ ・・・・・・・・・・・ ★Fun content is constantly being released on the “Gakken Millions [Official]” YouTube channel! ＼Please subscribe to our channel! ／ ▶https://www.youtube.com/@gakkenmillions ・・・・・・・・・・・・ ■Gakken Inc. https://www.corp-gakken.co.jp/ ・President and CEO: Nanjo Tatsuya ・Date of incorporation: January 13, 2009 (company name changed on October 1, 2022) ・Capital: 50 million yen ・Address: 2-11-8 Nishigotanda, Shinagawa-ku, Tokyo 141-8416 ・Business activities: Publishing and content, global business, medical and nursing publishing content, kindergarten and school business,
classroom-related business, e-commerce and online business, and advertising business. ■GAKKEN HOLDINGS CO., LTD.
https://www.gakken.co.jp/ ・President and CEO: Hiroaki Miyahara ・Date of incorporation: March 31, 1947 ・Capital: 19,817 million yen ・Sales: 185.5 billion yen, 79 consolidated subsidiaries (fiscal year ending September 2024) Tokyo Stock Exchange Listed on the Prime Market (Stock Code: 9470) ・Address: 2-11-8 Nishigotanda, Shinagawa-ku, Tokyo 141-8510 ・Telephone: 03-6431-1001 (Main) ・Business Description: Holding company established in 1946, engaged in education, medical care, and welfare-related businesses. Education Sector: Classroom and cram school operations, including “Gakken Classroom,” Publishing and content business, including educational materials, Preschool and school operations, including textbooks and childcare supplies, Medical and Welfare Sector: Serviced housing for the elderly, Dementia group homes, Childcare support services, including nurseries and
after-school programs, Global: Activities and operations in over 150 countries.