Seven Seas Entertainment has recently announced a fresh batch of licenses, adding to their already impressive catalog of manga, light novels, and more. Let’s dive into the details of these exciting new acquisitions: Betrothed to My Sister’s Ex, A Ninja and an Assassin Under One Roof, and My Twisted Eating Disorder.
A Tragic Mix-Up: Betrothed to My Sister’s Ex
Seven Seas Entertainment is bringing Tobirano, Mai Murasaki, and Chikage Nakakura’s Betrothed to My Sister’s Ex to English-speaking audiences with both a light novel and a manga adaptation. This series promises a blend of romance and complicated family dynamics.
Story Premise
Marie lives in the shadow of her sister in their impoverished baron’s home. While her sister receives all the nice things, Marie is often overlooked. Tragedy strikes when her sister, set to marry a wealthy Earl, dies en route. To salvage the situation and the dowry already spent, Marie is forced to take her sister’s place as the Earl’s betrothed.
Upon arriving, Marie discovers a significant mix-up: the marriage proposal was intended for someone else entirely. The series explores whether Marie can win the heart of the handsome Earl despite the misunderstanding, or if she is destined to continue living a life of hardship.
Release Details
- The light novel‘s first volume is slated for release in January 2026, priced at $15.99 in the USA and $20.99 in Canada.
- The manga adaptation’s first volume will also be available in January 2026, with a price of $13.99 in the USA and $17.99 in Canada.
- E-book versions of both the light novel and manga will be available on digital platforms.
Anime Adaptation
An anime television series adaptation is set to premiere in July 2025. Produced by LandQ Studios, with Takayuki Kitagawa directing, Kenta Ihara handling series composition, Akiko Satō designing characters, and Kujira Yumemi composing the music.
Deadly Roommates: A Ninja and an Assassin Under One Roof
A Ninja and an Assassin Under One Roof by HundredBurger is another exciting addition to Seven Seas’ lineup. This manga series, also known as NinKoro, offers a mix of comedy, action, and slice-of-life elements.
Story Premise
The story revolves around Satoko, a young ninja on the run from her village due to a misunderstanding, and Konoha, a deadly high school assassin. After a series of unfortunate events, Satoko finds herself sharing a house with Konoha. Satoko relies on Konoha’s skills to protect her from the ninjas seeking to kill her. Konoha tolerates Satoko because of her exceptional cleaning skills, which help Konoha clean up messes.
The series follows the unlikely duo as they navigate their new life together, fending off ninja attackers while trying to maintain some semblance of harmony.
Release Details
- The first volume of the manga is scheduled for release in December 2025.
- The manga will be available in single volume editions, with e-book versions also available on digital platforms.
Anime Adaptation
The manga has inspired a TV anime adaptation by Shaft, which began airing in Japan on April 10, 2025, and is streaming on Crunchyroll. The anime is planned to run for 12 episodes.
Personal Struggles: My Twisted Eating Disorder
Seven Seas Entertainment is also bringing Nagata Kabi’s My Twisted Eating Disorder to print. This autobiographical manga delves into the creator’s personal struggles with food and eating disorders.
Story Premise
My Twisted Eating Disorder explores the complexities of Nagata Kabi’s relationship with food, including her eating disorders, habits, and experiences with food preparation. The manga offers an unflinching look at these challenges.
Originally released as a digital-only exclusive under the title My Wandering Warrior Eating Disorder, this print edition marks the first time the manga is available in physical form.
Release Details
- The manga is set to be released in print in October 2025.
- It will be available in a large-trim paperback edition, with an e-book edition also available on digital platforms.
Other Recent Seven Seas Entertainment Licenses
Besides these three titles, Seven Seas Entertainment has also licensed several other manga, light novel, and manhwa series recently:
- Chronicles of an Aristocrat Reborn in Another World: The light novel series that inspired the manga and anime. The first volume will be released in English in December 2025.
- Godzilla Minus One: A novelization of the film.
- Long Period: A Boys’ Love manga about childhood friends. The first volume will be released in August 2025.
- Lovers on the Last Train: The first volume will be released in English in December 2025.
- A Reincarnated Carrier’s Strategy for Another World: The first volume will be released in January 2026.
- Twin Jades of Jiangdong: A danmei/Boys’ Love novel series by Arise Zhang.
- Far From Romance: A Mature-rated Boys’ Love manga by Amamiya.
- DEAR. DOOR (Comic): A Mature-rated, full-color Boys’ Love manhwa series by Pluto.
- The Cuckolding Wizard’s Adventure: A Mature-rated manga series by MAZIKARI, MASAHIRO ITOSUGI, and MAKUWAUNI.
- Kaya-chan Isn’t Scary: The mature-rated manga will be released in June 2025.
- The Feisty Omega and His Twin Mates: The first volume of the mature-rated manga will be released in July 2025.
- True Love Fades Away When the Contract Ends: The first volume of the audiobook series will be released on November 14, 2024.
Other News from Seven Seas
- Monster Musume: Deluxe hardcover omnibuses will be released in October 2025, containing never-before-seen extras.
- Grandmaster of Demonic Cultivation: Mo Dao Zu Shi: Deluxe hardcover editions of the danmei novel series will be released.
- Monster Musume The Novel – Monster Girls on the Job!: The audiobook was launched for the Siren Imprint.
Seven Seas Entertainment continues to expand its reach with diverse and engaging titles, catering to various tastes within the manga and light novel community. From thrilling action to heartwarming romance and introspective personal stories, there’s something for everyone to look forward to in the coming months.
