In a move that has sent waves of excitement through the anime community, Shueisha has officially announced that the wildly popular Shonen Jump+ manga, Marriagetoxin, is receiving a full anime adaptation. The series, a unique blend of high-stakes action and romantic comedy, is set to premiere in 2026 and will be produced by the legendary Studio Bones, the powerhouse studio behind iconic anime like Fullmetal Alchemist and My Hero Academia. This announcement confirms the long-held hopes of fans and positions Marriagetoxin as one of the most anticipated anime releases of the upcoming year.
Caption: Marriagetoxin’s official anime poster showcases the unlikely duo of assassin Hikaru Gero and marriage swindler Mei Kinosaki. Credit: Studio Bones/Shueisha Source: Official Marriagetoxin anime announcement
What is Marriagetoxin? The Story of an Assassin’s Quest for Love
For those unfamiliar with the source material, Marriagetoxin tells the story of Hikaru Gero, a highly skilled assassin from the infamous Poison Masters Clan. While a master of his deadly craft, Gero is a complete novice when it comes to romance. When his family pressures him to marry and produce an heir to continue their bloodline, Gero finds himself in a desperate situation. To protect his sister from being forced into this role, he must find a wife, a mission for which he is hilariously unprepared.
His quest leads him to cross paths with Mei Kinosaki, a master marriage swindler and his latest assassination target. In a twist of fate, Gero asks for her help in navigating the treacherous world of dating. What follows is a thrilling and often comedic journey as the assassin and the swindler team up for what they call “the world’s toughest mission for love.” The series masterfully balances intense action sequences with genuinely funny and heartwarming moments, creating a truly unique and engaging narrative.
From Manga Success to Highly-Anticipated Anime
The Marriagetoxin manga, written by Joumyaku and illustrated by Mizuki Yoda, has been a standout hit on the Shonen Jump+ digital manga platform since its debut in April 2022. The series has garnered critical acclaim and a dedicated fanbase, earning a nomination for the Next Manga Award in 2022 and being ranked among the top recommended comics by Japanese publishers in 2023. Its popularity is a testament to the growing influence of the global manga industry, which continues to produce fresh and innovative stories.
Caption: The original Marriagetoxin manga by Joumyaku and Mizuki Yoda has been a standout hit on Shonen Jump+ since 2022. Credit: Joumyaku, Mizuki Yoda/Shueisha Source: Shueisha/Viz Media
The Powerhouse Team Behind the Marriagetoxin Anime
At the helm of the Marriagetoxin anime adaptation is Bones Film, a division of the renowned Studio Bones. The studio has a long and storied history of producing high-quality anime, and their involvement is a strong indicator of the project’s potential. The production boasts a team of industry veterans, including director Motonobu Hori (Carole & Tuesday), chief animation director and character designer Kohei Tokuoka (SK8 the Infinity), and scriptwriter Kimiko Ueno. The music will be composed by Taisei Iwasaki and yuma yamaguchi.
The voice cast is led by Haruki Ishiya as the assassin protagonist Hikaru Gero and Shion Wakayama as the charismatic marriage swindler Mei Kinosaki. Original creator Joumyaku has expressed his immense excitement for the adaptation, praising the production team’s deep understanding of the source material and declaring that the anime “will without a doubt be a masterpiece.”
Why the Marriagetoxin Anime is a Big Deal for 2026
The announcement of the Marriagetoxin anime is significant for several reasons. It continues the trend of successful manga from the Shonen Jump+ platform receiving high-profile anime adaptations, following in the footsteps of hits like Spy x Family and Kaiju No. 8. This highlights the platform’s growing importance as a source of new and exciting stories for the anime industry.
The involvement of Studio Bones is another major factor. The studio is known for its exceptional animation quality and its ability to faithfully adapt beloved manga series. With a strong creative team and a compelling story, the Marriagetoxin anime has all the ingredients to be a major hit in the fall 2025 anime season and beyond. Fans of action, comedy, and romance have a lot to look forward to when Marriagetoxin premieres in 2026.
References
- https://www.cbr.com/marriagetoxin-anime-bones-trailer/
- https://en.wikipedia.org/wiki/Marriagetoxin
- https://comicbook.com/anime/news/surprise-shonen-jump-series-reveals-new-anime-with-first-look-trailer-and-poster/









