"Marriage Toxin" Anime Gears Up for Highly Anticipated Second Season in 2027, Unveils New Visuals and Returning Creative Team

Tokyo, Japan – September 7, 2026 – The hit anime adaptation of Joumyaku and Mizuki Yoda’s electrifying manga, "Marriage Toxin," is set to return for its second season in 2027, promising another thrilling installment of assassin-meets-swindler action. Anime News Network has exclusively learned that the production team behind the successful first season is returning, with a newly released promotional video and key visual offering fans a tantalizing glimpse into what lies ahead.

The announcement, made earlier this week, has sent ripples of excitement through the anime community. The first season, which premiered on April 7th of this year, captivated audiences with its unique blend of dark humor, high-octane action, and a surprisingly heartfelt exploration of love and duty. Now, with the confirmation of a second season, fans can rest assured that the intricate world and compelling characters of "Marriage Toxin" will continue to unfold.

A Look Back: The Triumphant Debut of "Marriage Toxin"

The journey of "Marriage Toxin" from manga pages to the animated screen has been a remarkable one. The original manga, penned by Joumyaku with illustrations by Mizuki Yoda, first debuted on Shueisha’s popular Shonen Jump+ app in April 2022. Its distinctive premise, centered on an elite assassin tasked with finding a bride to secure his family’s bloodline, quickly garnered a devoted following.

The anime adaptation, produced by the esteemed studio Bones Film under the watchful eye of BONES, premiered on April 7, 2026. It was broadcast on Tuesdays as part of the new "Ka-Anival!!" programming block on Kansai TV and Fuji TV. Global audiences were able to experience the series simultaneously through Crunchyroll’s streaming service, ensuring that fans worldwide could join Hikaru Gero and Mei Kinosaki on their unconventional quest for love.

The first season featured a stellar voice cast and a creative team that brought the manga’s vibrant energy to life. The opening theme song, "Kill or Kiss," was performed by the talented actress and singer Yurina Hirate, while the ending theme, "Shake Na Baby," was delivered by singer-songwriter AKASAKI. These musical contributions further enhanced the anime’s distinctive atmosphere and cemented its place as a standout series of the season.

The Road to Season Two: A Familiar Team, New Adventures

The confirmation of a 2027 release for the second season is a testament to the first season’s critical and commercial success. The production team’s decision to retain the core creative staff underscores a commitment to maintaining the high quality and consistent vision that defined the initial run.

Leading the charge once again is director Motonobu Hori, known for his work on the critically acclaimed Carole & Tuesday. His distinctive directorial style is expected to bring a fresh perspective to the unfolding narrative while remaining faithful to the source material. Production supervision will be handled by BONES, ensuring the series benefits from the studio’s renowned animation expertise.

Kimiko Ueno, who penned the scripts for the first season, returns as the writer and overseer of the series scripts. Her ability to balance intricate plotlines with character development was a key factor in the first season’s success, and her continued involvement promises a cohesive and engaging narrative arc for the upcoming season.

The musical landscape of "Marriage Toxin" will be further enriched by the return of composers Taisei Iwasaki and Yuma Yamaguchi. Iwasaki, whose work on BELLE garnered international praise, and Yamaguchi, known for their contributions to Metallic Rouge, are expected to deliver a score that complements the series’ emotional depth and thrilling action sequences.

Key animation director and character designer Kōhei Tokuoka will also reprise his role, ensuring that the beloved characters maintain their distinct visual appeal. His meticulous attention to detail in character design and animation has been instrumental in bringing the world of "Marriage Toxin" to life.

The newly released promotional video offers a dynamic preview of the upcoming season, hinting at new challenges and escalating stakes for Hikaru and Mei. The accompanying key visual, a striking piece of artwork, further ignites anticipation, showcasing the series’ signature blend of danger and allure.

The World of "Marriage Toxin": A Deeper Dive into the Premise

For those unfamiliar with the intricacies of the "Marriage Toxin" universe, Shueisha’s official description provides invaluable insight into the series’ core themes and plot drivers:

"For centuries, the deadly arts have been perfected by those known as the Masters. Among them, the Poison Masters of the Five Great Families hold the most fearsome power and influence. Hikaru Gero, heir to the Poison Masters’ Gero Family, has lived his entire life in the underworld, far removed from love or marriage.

But when the Gero Family head decrees that Hikaru’s sister must bear an heir to preserve the bloodline – by force if necessary – Hikaru resolves to protect her at all costs. It is then that Hikaru encounters Mei Kinosaki, a brilliant marriage swindler who becomes the target of his latest job. Realizing that the only way of solving the family succession problem and protecting his sister is through marriage, Hikaru impulsively asks Mei for help in finding a bride.

‘That’s the first time anyone’s ever proposed like that.’

And so, with the cunning marriage swindler Mei as his advisor, elite assassin Hikaru embarks on the most challenging mission of his life: finding a wife!

Their goal: the ultimate marriage.

This is the world’s toughest mission for love, brought to you by the ultimate duo – an assassin and a marriage swindler!

To win love, you’ve got to play with poison. A high-stakes mission for the ultimate duo begins!"

This synopsis perfectly encapsulates the central conflict and the unlikely partnership that drives the narrative. Hikaru’s rigorous upbringing in the shadow of the deadly arts contrasts sharply with Mei’s street-smart cunning and experience in the world of romance, albeit from a transactional perspective. Their journey promises a compelling exploration of trust, vulnerability, and the true meaning of partnership in the face of extreme danger.

Supporting Data and Industry Impact

The success of "Marriage Toxin" is not an isolated phenomenon. The anime industry continues to experience robust growth, with adaptations of popular manga properties consistently drawing large audiences and driving merchandise sales. Shueisha, a leading publisher of manga, has been particularly successful in leveraging its extensive library to fuel the anime boom. The Shonen Jump+ platform, in particular, has become a fertile ground for discovering new talent and launching successful anime adaptations.

The licensing of "Marriage Toxin" by Viz Media for international distribution, alongside its availability on Shueisha’s MANGA Plus app, further highlights the global appeal of the series. This strategic approach to distribution ensures that the manga reaches a wide audience, fostering anticipation for anime adaptations and creating a strong foundation for future seasons.

The investment in high-quality animation, as evidenced by the involvement of studios like BONES and talented individuals like Motonobu Hori, is a crucial factor in the continued success of anime. The visual spectacle and compelling storytelling offered by these productions are what captivate audiences worldwide and drive the industry forward.

Looking Ahead: Implications and Expectations for Season Two

The confirmation of a second season in 2027 provides ample time for the production team to further develop the intricate plot and character arcs that have made "Marriage Toxin" so compelling. Fans can expect the continuation of Hikaru and Mei’s complex relationship, with their partnership likely to be tested by new antagonists and escalating threats from the underworld.

The series’ exploration of themes such as duty, family, and the true nature of love is expected to deepen. The contrast between Hikaru’s rigid adherence to his family’s legacy and Mei’s pragmatic approach to life offers fertile ground for character growth and philosophical exploration.

Furthermore, the success of the first season’s musical contributions suggests that the second season will likely feature equally captivating opening and ending themes. The potential for new artists to contribute to the soundtrack could further broaden the series’ appeal and introduce new audiences to the world of "Marriage Toxin."

As the anime community eagerly awaits the return of Hikaru and Mei, the announcement of a second season in 2027 serves as a powerful testament to the enduring appeal of compelling storytelling, strong characters, and high-quality animation. The "Marriage Toxin" franchise has firmly established itself as a must-watch series, and its next chapter promises to be even more explosive, romantic, and utterly unforgettable.