Manga Box's "I Was a Combat Slave, but the Dragonian Who Saved Me Says We're Mates." Exceeds 1 Million Copies in Cumulative Sales

This work achieved the major milestone of 1 million copies in cumulative sales one year and three months after its launch in January 2025, following the release of its latest third volume and having already surpassed 500,000 copies in August 2025. Its intricate world-building, depicted with overwhelming artistry, and a deep human drama transcending species, have captured the hearts of many readers.
This work's greatest feature is the profound storytelling spun by Hayase Kuroe, which goes beyond the typical "fantasy for women" genre. The delicate emotional nuances woven between Yui, a girl who closed her heart as a combat slave, and Celeste, the dragonian who saved her, are brought to life through Shiro Kiiko's stunning artwork.
It has continued to rank high on various e-book stores, including achieving the #1 overall spot for two consecutive months on "Comic C'moa," one of Japan's largest comprehensive e-book stores. Reaching 1 million copies by the release of its third volume is the fastest achievement among Manga Box's original works. Moving forward, Manga Box aims to collaborate with TBS Group and various other companies to develop media mix projects and promotional campaigns, allowing more readers to enjoy this work and deepen their love for its world.

**Work Introduction**
Title: I Was a Combat Slave, but the Dragonian Who Saved Me Says We're Mates.
Original Story: Hayase Kuroe
Manga: Shiro Kiiko
Publisher: Manga Box Co., Ltd.
Copyright: ©Shiro Kiiko・Hayase Kuroe/Manga Box

**Story**
"Number Eight," a girl who was only allowed to fight as a combat slave.
Wounded by daily battles, her heart and body on the verge of breaking, she met
"Celeste," a young security guard who arrived to raid an illegal arena.
He was a dragonian, searching for his "fated mate."
The moment lonely souls connect—
The encounter between a girl and a dragonian will change the world.

**Author Comments**
Original Author, Hayase Kuroe-sensei
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Thank you for 1 million copies in cumulative sales. I am truly delighted that I could deliver such wonderful news thanks to everyone who cherishes Yui and Celeste's story, Shiro-sensei, the editorial department, and the editor-in-charge, and the encouragement from so many people. I am filled with gratitude.
As one of the fans of the manga adaptation, I am looking forward to "Moto Sentouyou Dorei" from now on.
I would be happy if you could continue to enjoy it with me.

Manga Artist, Shiro Kiiko-sensei
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Thank you very much for your patronage of 1 million copies.
I am very happy that so many people have read "Moto Sentouyou Dorei," the world of Yui and Celeste spun by Hayase-sensei.
The original web novel beautifully concluded this spring, but the manga adaptation is currently only about one-third of the entire original novel.
Yui grows up slowly, surrounded by kind people. I hope you will continue to support the manga's Yui and her companions until they reach the story's conclusion.

**Related Links**
・Manga Box: https://www.mangabox.me/reader/127460/episodes/52977/
・Manga Box Official X: https://x.com/Manga_Box
・Work Official X: https://x.com/mb_motosen

**Inquiries (for Media & Industry Professionals)**
Manga Box Co., Ltd.
Contact: Sudo・Muraka・Sakiyama
E-mail: press@mangabox.jp
TEL: 050-1751-2885

**Notes Regarding This Release**
*Cumulative sales are calculated based on sales performance of both physical comics and e-books.
*The use of materials within this release for AI learning is strictly prohibited.

**Copyright**
©Shiro Kiiko・Hayase Kuroe/Manga Box