MARRIAGETOXIN
MARRIAGETOXIN / Marriage Toxin / วิวาห์แต้มพิษ / Брачный токсинSummary
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.
(Source: EMOTION Label Channel)
Where to watch
Platforms
Official and social
Other links
Availability may vary by country.
Episodes
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Details
- Format
- TV series
- Number of Episodes
- 13
- Episode length
- 24 min
- Estimated total length
- ≈ 5 h 12 min (13 × 24 min)
- Season
- Spring 2026
- Start date
- April 7, 2026
- End date
- June 30, 2026
- Status
- Finished
- Source
- Manga
- Country of origin
- Japan
- Studios
- bones film
- Romaji title
- MARRIAGETOXIN
- English title
- MARRIAGETOXIN
- Native title
- マリッジトキシン
- Other titles
- Marriage Toxin · วิวาห์แต้มพิษ · Брачный токсин
Relations
Suggested watch order
Based on known prequels and sequels.
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MARRIAGETOXINThis page
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MARRIAGETOXIN 2nd Season
Characters 19
Main characters
- Hikaru Gero下呂ヒカルMain
Profile
- Gender
- Male
- Blood type
- A
Specialist Type: Poison User Hikaru Gero is the main protagonist of the MarriageToxin series. Gero is part of the Gero Family, one of the top five families of specialists. He is the current heir to the Poison clan. A poison-using hitman from the clan of assassins. In order to keep his sister from being forced into having a child to continue the lineage of…
- Mei Kinosaki城崎芽衣Main
Profile
- Blood type
- AB
Occupation: Swindler Mei Kinosaki is a marriage swindler who charms both men and women in order to get money from them to help keep their sick brother alive. Mei was saved by Gero after being captured by a crime syndicate that they had wronged. Mei agreed to help Gero find a wife in exchange for Gero's protection, and help with keeping their sick brother…
Show the other characters (17)
- Toshiki Hanamaki花巻トシキSupporting
Profile
- Gender
- Male
- Blood type
- O
Specialist Type: Bug User He is a specialist from Hanamaki Clan a sub-ranch of the Gero Family. He's Gero's best friend.
- Akari Gero下呂アカリSupporting
Profile
- Gender
- Female
She is a specialist part of the Gero Family alongside her brother and Teruaki.
- Piichi Nakagawa中川桃壱Supporting
Profile
- Gender
- Male
He is an ordinary person who has a dream of opening a cafe with his girlfriend.
- Shiori Ureshino嬉野シオリSupporting
Profile
- Gender
- Female
- Blood type
- A
She is the next heir of the Ureshino Family. After the death of her father, he would leave her in charge of the company. This would cause her to be under the care of her uncle who would try to help her in everything she needed. After her uncle informed her that a murderer was after her, she agrees to be escorted by someone.
- Kimie Arashiyama嵐山キミ恵Supporting
Profile
- Gender
- Female
- Blood type
- B
Height: 171 cm (5'7'') Specialist Type: Hamster User She is from Beast Clan. After her brother disappeared, Kimie would try to take a job in his place, this would cause Kimie to be kidnapped by a group of terrorists who wanted her organs. At that moment a small Hikaru Gero would come to save her. From that moment on, Kimie would become a big fan of Gero.
- Genya Naruko鳴子弦弥Supporting
Profile
- Gender
- Male
- Blood type
- AB
Specialist Type: Sound User
- Shizuku Ushio潮雫Supporting
Profile
- Gender
- Female
- Blood type
- AB
Specialist Type: Water User She has a laid back personality and respects Hikaru Gero for what he has done for the poison clan.
- Kyouko Himekawa姫川杏子Supporting
Profile
- Gender
- Female
- Blood type
- O
She is a famous art thief known in the underworld. Himekawa is an animal lover as she is friend with a shark named Jawshua. She is also able to see the feelings of painting.
- Byakko白狐Supporting
Profile
- Gender
- Female
- Blood type
- A
Height: 162 cm (5'4'') She is the maid of Toshiro, a The Tainted and a member of Byakko Clan.
- Toshiro Dogo道後十四郎Supporting
Profile
- Gender
- Male
- Blood type
- A
Height: 185 cm (6'1'') Specialist Type: Beast User He is member of the Dogo Family, one of the top five families of specialists.
- Tomohisa Itabashi板橋トモヒサSupporting
Profile
- Gender
- Male
- SiriusシリウスSupporting
Profile
Kimie Arashiyama's partner.
- Yousuke Itabashi板橋ヨウスケSupporting
Profile
- Gender
- Male
- Tonako Dogo道後十七子Supporting
Profile
- Gender
- Female
Specialist Type: Wolf User She is the current head and member of the Dogo Family.
- Marin Arimura有村真倫Supporting
Profile
- Gender
- Female
She is an ordinary person who has a dream of opening a cafe with her boyfriend.
- Teruaki Gero下呂テルアキSupporting
Profile
- Gender
- Male
- Blood type
- O
Height: 167cm (5'6'') He is a specialist part of the Gero family and the cousin of Gero and Akari, as well as Akari's former fiancé.
- NarratorナレーターBackground
Profile
This character page is set to represent and list all narrators, which haven't been given a visual representation of themselves in their respective work. Please add other narrator characters, which were given a visual representation of themselves, separately from this narrator page.
Staff and studios
Studios
Key staff
- Motonobu HoriDirector
- Mizuki YodaOriginal Character Design
- Kimiko UenoSeries composition
- Kouhei TokuokaCharacter design
- Taisei IwasakiMusic
- Haru YamadaSound director
Show the full staff (19)
- Toshiki AmataArt Design
- Kumiko SakamotoEditing
- Ryou HirataProp Design
- Keiko FukumotoKey Animation (ep 1)
- Hiroya IijimaKey Animation (ep 1)
- Chie NishioKey Animation (ep 1)
- Masaya SekizakiKey Animation (ep 1)
- Kouhei TokuokaChief Animation Director (ep 1)
- Azusa OkazakiIn-Between Animation (ep 1)
- Asuka HayashiKey Animation (ep 1)
- Tatsuya MinamiSystem Engineer
- Saori HosodaKey Animation (ep 1)
- Takafumi SawaPhotography (ep 1)
- Nobutaka MasudaKey Animation (ep 1)
- Keiichi KondouAnimation Director (ep 1)
- Tomomi ShimazakiKey Animation (ep 1)
- Kimiko UenoScript (ep 1)
- Izumi KodamaIn-Between Animation (ep 1)
- Zachary BoltonADR Producer (English)