

Great news for anime fans! The official website for the television anime adaptation of Marriagetoxin just dropped a bunch of exciting updates this Tuesday. We’re talking new cast members, additional staff details, the first promotional video, and a slick new key visual to feast your eyes on. This anime is based on the action-packed manga by Joumyaku and Yoda Mizuki, and it’s all set to hit screens in April 2026.
What’s Marriagetoxin All About?
For those catching up, Marriagetoxin is a shounen action manga that’s been serializing on Shounen Jump+ since April 2022. The story follows a wild premise involving assassins and marriage toxins—yeah, it’s as intense and fun as it sounds. The anime adaptation has been highly anticipated, and with this new info, the hype is definitely real.
Meet the New Voice Cast
The anime has stacked its voice cast with some fantastic talent. Here’s a look at the newly announced characters and the voices behind them, presented in classic Japanese name order.
| Character | Voice Actor |
|---|---|
| Himekawa Kyouko | Nagase Anna (known from Zenshuu.) |
| Ushio Shizuku | Ise Mariya (heard in Chainsaw Man) |
| Ureshino Shiori | Yuikawa Asaki (from Nige Jouzu no Wakagimi) |
| Naruko Genya | Saitou Souma (of Blue Lock fame) |
| Arashiyama Kimie | Shirahama Hinano (from Hotel Inhumans) |
| Nakagawa Piichi | Tsuchiya Simba (featured in Kidou Senshi Gundam: GQuuuuuuX) |
| Gero Akari | Shiraishi Haruka (from Kowloon Generic Romance) |
| Hanamaki Toshiki | Yuusen Isamu (familiar from Haikyuu!!) |
Behind the Scenes: Additional Staff
The production team is expanding with some seasoned professionals. Check out the table below for the latest staff additions.
| Role | Staff Member |
|---|---|
| Sub-character Design | Sako Yurika (character design for Edens Zero) |
| Costume Design | Kotono (worked on Ranma ½ (2024) 2nd Season) |
| Prop Design | Nagaki Ayumi (from Bocchi the Rock!), Hirata Ryou (from Kusuriya no Hitorigoto) |
| Art Design | Amada Toshiki (known for Enen no Shouboutai: San no Shou) |
| Art | Bihou |
| Color Design | Umezaki Hiroko (from Metallic Rouge) |
| Director of Photography | Kanbayashi Tsuyoshi (of Bungou Stray Dogs) |
| 3DCG | SANZIGEN |
| CG Animation Director | Nagashima Daiki (3DCG animation for BanG Dream! It’s MyGO!!!!!) |
| Editing | Sakamoto Kumiko (from Lazarus) |
| Sound Director | Yamada Haru (worked on Made in Abyss) |
| Sound Effects | Mitsui Tomokazu (from Sarazanmai) |
Core Production Team
Heading the project is director Hori Motonobu (known for Super Crooks) at Bones Film. The series composition and scripts are in the hands of Ueno Kimiko (from Dungeon Meshi), while character design is handled by Sako Yurika (also on Edens Zero). The music will be composed by Iwasaki Taisei (of Kekkai Sensen) and Yamaguchi yuma (from Shiguang Dailiren), promising a stellar soundtrack.
Manga Background and Releases
The source manga, created by Joumyaku and Yoda Mizuki, has been going strong with 15 volumes already out. The latest volume hit shelves on October 3, and volume 16 is scheduled for January 5, 2026. For English readers, VIZ Media licensed the series back in June 2023. They’ve published up to volume 10 as of December 2, with volume 11 expected on February 3, 2026. If you haven’t checked it out yet, now’s the perfect time to dive in before the anime premieres!
Source
This information was originally reported by Comic Natalie.






