2025’s 47th issue of Weekly Shonen Jump confirms that Shueisha and BONES Film’s TV anime adaptation of Joumyaku and Mizuki Yoda’s MARRIAGETOXIN manga series premieres in April 2026. More details about the anime’s run, theme songs, and staff will be revealed at a later date.
Motonobu Hori is directing the MARRIAGETOXIN anime series. Kimiko Ueno is in charge of series composition and scripts, Kohei Tokuoka is the character designer and chief animation director, and Taisei Iwasaki and yuma yamaguchi are the music composers. BONES Animation is supervising the production by BONES Film and MARRIAGETOXIN Project. The main cast of the anime includes Haruki Ishiya as Hikaru Gero and Shion Wakayama as Mei Kinosaki.
Here’s an overview of the anime, courtesy of Shueisha:
This high-stakes, marriage centered, battle action story follows Hikaru Gero, a young assassin and heir to the centuries-old Poison Masters Clan. In order to preserve his family bloodline, Hikaru teams up with master marriage swindler, Mei Kinosaki, to pursue the ultimate marriage.
Heir to the “Poison Master” Gero Family, one of the Five Great Families of “Masters,” Hikaru Gero (Voiced by Haruki Ishiya) is a top-tier assassin with no experience in romance and little ability to interact with women. His life in the underworld has left no room for such things. He reluctantly begins searching for a bride to carry on the family line. His hobby is collecting DIY candy kits.
Mei Kinosaki (Voiced by Shion Wakayama) is an experienced marriage swindler who boasts that they can charm almost anyone, man or woman, in just 30 seconds. After meeting Hikaru by chance, they unexpectedly end up helping him in his quest for marriage. Despite their refined appearance, they have an enormous appetite and love delicious food.
