The series is set to premiere sometime in April 2026.
The upcoming action comedy anime MARRIAGETOXIN has revealed a new cast update, as well as a new key visual and promotional video on its official website and X (formerly Twitter) account. The series is set to premiere sometime in April 2026, although an exact broadcast date is yet to be confirmed.
The key visual:
The promotional video:
MARRIAGETOXIN cast and other details
The new members joining the cast are:
- Anna Nagase as Kyoko Himekawa
- Mariya Ise as Shizuku Ushio
- Asaki Yuikawa as Shiori Ureshino
- Soma Saito as Genya Naruko
- Hinano Shirahama as Kimie Arashiyama
- Simba Tsuchiya as Piichi Nakagawa
- Haruka Shiraishi as Akari Shimaburo
- Isamu Yusen as Toshiki Hanamaki
The main cast members are:
- Haruki Ishiya as Hikaru Gero
- Shion Wakayama as Mei Kinosaki
Motonobu Hori directs the anime at Bones Film, with Kimiko Ueno handling the scripts. Kohei Tokuoka is the character designer and chief animation director, while Yuma Yamaguchi composes the music.
The anime is based on the manga written by Joumyaku and illustrated by Mizuki Yoda. Viz Media publishes the manga in English and describes the story as:
Poison Master Hikaru Gero is about to take on his most challenging assignment yet—getting married! But after training his entire life to become one of the world’s deadliest assassins, Gero couldn’t be more clueless when it comes to the art of dating. Thankfully, marriage swindler Mei Kinosaki knows everything there is to know about love, and together, this unlikely pair is going to do whatever it takes to get Gero hitched—even if they have to take on the entire criminal underworld in the process!