Seven Seas Entertainment has announced the licensing of three new manga series, as well as the launch of a Monster Musume audiobook and two hardcover deluxe titles.
The newly licensed titles include A Ninja and an Assassin Under One Roof and Betrothed to My Sister’s Ex, among other series.
Here are the details for the latest Seven Seas titles:
A Ninja and an Assassin Under One Roof
Story and Art: HundredBurger
The first volume will be printed for the first time in the English language in December 2025, with the series available in single volume editions. Ebook editions will also be available on digital platforms.
The manga has inspired a TV anime adaptation from Shaft that began airing in Japan on April 10, 2025. It is currently streaming on Crunchyroll and will run for 12 total episodes.
Synopsis:
After a series of unfortunate events, young ninja Satoko has found herself sharing a house with the deadly assassin, Konoha. On the run from her village due to a misunderstanding, she’s relying on Konoha’s murderous skills to keep her safe from the ninjas seeking to kill her. But Konoha isn’t the easiest to get along with and is only tolerating Satoko due to her excellent skills at cleaning up messes — both from Konoha’s work and in her home. Somehow, these two will find harmony in their new life together while keeping ninja attackers at bay! So long as they can survive each other, that is.
Betrothed to My Sister’s Ex (Manga and Light Novel)
Original Story: Tobirano
Illustrations: Mai Murasaki
Manga Art: Chikage Nakakura
The first volume of the light novel series will be released for the first time in English in January 2026 as single volume editions. Ebook editions will also be available on digital platforms.
The first volume of the manga series will be released for the first time in English in January 2026 as single volume editions. Ebook editions will also be available on digital platforms.
The light novels are also inspiring an upcoming TV anime series from LandQ Studios, and is set to debut this July 2025.
Synopsis:
Marie has spent her life living under her sister’s shadow as the two grew up in an impoverished baron’s home. Every nice thing went to Marie’s sister, leaving her without even a proper dress! And right when her sister was being married off to a wealthy Earl–tragedy strikes and Marie’s sister is killed en route. With the dowry already spent, it’s decided that Marie will take her sister’s place and become the Earl’s betrothed. But, when she gets there, she finds there’s been a serious mix-up — the proposal was a total misunderstanding! Can Marie win the heart of the handsome Earl, or is she destined to live a life without a single nice thing?
My Twisted Eating Disorder
Story and Art: Nagata Kabi
The latest autobiographical manga from the Harvey Award-winning creator of My Lesbian Experience With Loneliness first debuted as a digital exclusive release. It will be printed for the first time in the English language in October 2025 in a large-trim paperback edition. An ebook edition will also be available on digital platforms.
Synopsis:
This diary comic details the complexities of Nagata Kabi’s fraught relationship with food, from eating disorders and habits to food preparation, with unflinching and detailed honesty. This short manga (originally 50 pages long) was written after My Wandering Warrior Existence and was only released on digital platforms in Japan. Seven Seas initially published the manga in English as an ebook exclusive before the release of the book written after it – My Pancreas Broke, But My Life Got Better – in order to preserve the chronological timeline of new entries in Nagata Kabi’s powerful autobiographical series. Now, the anticipated release of the printed edition is here!
Grandmaster of Demonic Cultivation: Mo Dao Zu Shi (Hardcover Deluxe Danmei Novel)
Story: Mo Xiang Tong Xiu
Seven Seas Entertainment will be releasing new deluxe hardcover editions for the Chinese danmei Boys’ Love novel series Grandmaster of Demonic Cultivation: Mo Dao Zu Shi. The novels have inspired a webcomic, audio drama, audiobook, The Untamed live-action web series, donghua, and mobile game.
Each deluxe hardcover rerelease features special embellishments such as: a dust jacket featuring all-new art and foil lettering, a new foil illustration against linen-texture graining on the hardcover itself, elaborate printed edges, and a ribbon bookmark.
The first volume of the hardcover novels will be released in October 2024 in a single large-trim hardcover, with the rest of the 5-volume series to follow later on.
Synopsis:
Wei Wuxian was once one of the most outstanding men of his generation, a talented and clever young cultivator who harnessed martial arts, knowledge, and spirituality into powerful abilities. But when the horrors of war led him to seek a new power through demonic cultivation, the world’s respect for his skills turned to fear, and his eventual death was celebrated throughout the land.
Years later, he awakens in the body of an aggrieved young man who sacrifices his soul so that Wei Wuxian can exact revenge on his behalf. Though granted a second life, Wei Wuxian is not free from his first, nor the mysteries that appear before him now. Yet this time, he’ll face it all with the righteous and esteemed Lan Wangji at his side, another powerful cultivator whose unwavering dedication and shared memories of their past will help shine a light on the dark truths that surround them.
Monster Musume (Deluxe Hardcover Manga)
Story and Art: OKAYADO
Seven Seas will publish the entire manga series Monster Musume in oversized hardcover omnibuses with exclusive covers. The first omnibus containing Volumes 1-3 of the manga will be released in October 2025.
The original manga series inspired a 12-episode TV anime series in 2015 from Lerche.
Synopsis:
Kurusu Kimihito’s home has become the newest hotspot for the sexiest monster girls around! Now that the government has created the Interspecies Cultural Exchange Accord, a program that helps fantastical beings integrate into society, Kimihito has found himself an involuntary “volunteer” in the homestay program for monster girls.
Before he can even begin to understand what this means, a sexy lamia with a serpentine tail that goes for days named Miia moves in. This cold-blooded beauty may be feeling hot for Kimihito, but he must ignore his raging hormones and resist the seductive serpent — or risk breaking a very serious law! But when a scantily clad harpy and a buxom centaur girl also make themselves at home, he may find his willpower weakening.
Can a young man in his prime resist the temptations surrounding him, or is he about to live the ultimate fantasy with his very own monster girl harem?
Monster Musume The Novel – Monster Girls on the Job! (Audiobook)
Story: Yoshino Origuchi
Original Art and Concept: OKAYADO
The audiobook based on the Monster Musume spinoff novel will be released for the first time in the English language on May 8, 2025. It will be narrated by voice actor Bryson Baugus.
Synopsis:
Ordinary twenty-something Kurusu Kimihito thought living with a bunch of monster girls was complicated enough, but there’s a new directive sent down from the government: get a job! Now lamia Miia, centaur Centoria, and all your favorites have to join the working world, leading to sexy uniforms, on-the-job shenanigans, and all-new hilarity! Written by the author of the Monster Girl Doctor light novels, Yoshino Origuchi, and with all-new illustrations by series creator OKAYADO, this book features everyone’s favorite monster girls in a new light novel adventure!
Pre-orders for the audiobook are now available at Seven Seas Audiobooks official website.
Source: press release
