《Marriagetoxin] (Japanese:マリッジトキシン; English:Marriage Toxin) is aJoumyakuOriginal work by,Mizuki Yodais a manga illustrated by [them], with derivative works such as anime.
Original Work Introduction
Synopsis
Gero is a young man from a clan of "Poison Users" that has been in the assassination business for hundreds of years. For him, who works in the shadows and is poor with women, marriage was never a necessity. However, to prevent the "Poison User" bloodline from dying out, his family informs him that his sister will be forced to bear an heir. Just then, Gero meets Kinosaki, a marriage swindler who was once his target...?! "—Such a
Characters
*CVs are for the anime, Vol. 15 release commemorative PV / Vol. 1 release commemorative PV
Hikaru Gero（
CV:Haruki Ishiya/Kent Ito
The heir to the "Poison Users" Gero family, one of the five great families that are considered the strongest among professional hitmen known as "Users". A top-tier assassin.
Due to working in the shadows, he has zero experience in love and is bad at dealing with women. He is forced to start marriage hunting to carry on his family line. His hobby is collecting candy toys.
Mei Kinosaki（
CV:Shion Wakayama/Reina Ueda
A skilled marriage swindler who claims she can make almost any target, regardless of gender, fall for her in just 30 seconds.
She meets Gero and unexpectedly begins helping him with his marriage hunting. She loves delicious food and has a surprisingly large appetite that belies her appearance.
Publication Information
Derivative Works
Anime Version
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Anime Teaser Visual -
Anime Key Visual
On October 1, 2025, a TV anime adaptation was announced, to be broadcast starting April 7, 2026, on the Kansai TV and Fuji TV networks' "火アニバル!!" block.
STAFF
- Original Work: "Marriage Toxin" by Joumyaku and Mizuki Yoda (Serialized in Shueisha's "Shonen Jump+")
- Director: Motonobu Hori
- Series Composition, Script:Kimiko Ueno
- Character Design, Chief Animation Director: Kohei Tokuoka
- Sub-Character Design: Yurika Sako
- Costume Design: Kotono
- Prop Design: Ayumi Nagaki, Ryo Hirata
- Art Design: Toshiki Amada
- Art: Bihou
- Color Design: Hiroko Umezaki
- Director of Photography: Tsuyoshi Kanbayashi
- 3DCG: SANZIGEN
- CG Director: Daiki Nagashima
- Editing: Kumiko Sakamoto
- Sound Director:Yo Yamada
- Sound Effects: Tomokazu Mitsui
- Music: Taisei Iwasaki, yuma yamaguchi
- Production, Supervision:BONES
- Animation Production: BONES film
- Produced by: Marriage Toxin Production Committee
CAST
- Hikaru Gero:Haruki Ishiya
- Mei Kinosaki:Shion Wakayama
- Kyoko Himekawa:Anna Nagase
- Shiori Ureshino:Asaki Yuikawa
- Kimie Arashiyama:Hinano Shirahama
- Shizuku Ushio:Mariya Ise
- Genya Naruko:Soma Saito
- Toichi Nakagawa:Shinba Tsuchiya
- Akari Gero:Shiraishi Haruka
- Toshiki Hanamaki:Isamu Yusen
Episode Production
| Episode Number | Japanese Title | Chinese Title | Script | Storyboard | Direction | Animation Director | Chief Animation Director |
|---|---|---|---|---|---|---|---|
| 1 | 毒使いの婚活 | The Poison User's Marriage | Kimiko Ueno | Motonobu Hori | Yurika Sako Keiichi Kondo Lai Zhiqing |
Kohei Tokuoka | |
| 2 | 魅力って何？ | What is charm? | |||||
Related Music
Opening Theme (OP)
- Kill or Kiss
- Vocals: Yurina Hirate
- Not used in Episode 1
Ending Themes (ED)
- シャケナベイべー
- Vocals: AKASAKI
- Not used in Episode 1