MARRIAGETOXIN (TV)

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Alternative title:
Marriage Toxin
マリッジトキシン (Japanese)
Genres: action
Plot Summary: For centuries, the deadly arts have been perfected by Masters, and Five Great Families hold the greatest power and influence. Hikaru Gero, an heir to the Gero family, lives in the underworld as an elite assassin. When his sister is pressured to produce an heir, Hikaru asks Mei Kinosaki, a brilliant marriage swindler, to find him a bride.
Episode titles: We have 3
Vintage: 2026-04-07
Opening Theme:
"Kill or Kiss" by Yurina Hirate
Ending Theme:
"Shake Na Baby" (シャケナベイベー) by AKASAKI
Reviews:
MARRIAGETOXIN ‒ Episodes 1-2 (Apr 16, 2026)
MARRIAGETOXIN (Apr 15, 2026)
News:
Crunchyroll Simulcasts Agents of the Four Seasons, The Food Diary of Miss Maid, More Anime in India (Mar 29, 2026)
Crunchyroll Announces Release Schedule for Spring 2026 Season (Mar 24, 2026)
Crunchyroll Streams Marriage Toxin Anime, Screens Global Premiere at Sakura-Con on April 4 (Mar 24, 2026)
Marriage Toxin Anime's 2nd Trailer Reveals Akasaki's Ending Song (Mar 23, 2026)
Marriage Toxin Anime Reveals Opening Song by Artist Yurina Hirate (Mar 16, 2026)
Marriage Toxin TV Anime Debuts on April 7 (Feb 13, 2026)
Muse Asia Licenses Marriage Toxin TV Anime (Feb 6, 2026)
Marriage Toxin TV Anime Reveals Trailer, More Cast & Staff (Dec 16, 2025)
The Ghost in the Shell, Marriage Toxin, Super Psychic Policeman Chojo Anime to Air in New Tuesday Night Programming Block (Oct 23, 2025)
Marriage Toxin TV Anime Debuts in April 2026 (Oct 20, 2025)
Press Releases:
Sakura-Con MARRIAGETOXIN Panel, Premiere of Episode One (Apr 6, 2026)
Marriage Toxin Unveils Behind-the-Scenes Series and Opening Theme Song by Yurina Hirate (Mar 16, 2026)
Other articles:
The Spring 2026 Anime Preview Guide - MARRIAGETOXIN (Apr 7, 2026)
The Most Anticipated Anime of Spring 2026 (Mar 27, 2026)
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Japanese staff
Japanese cast
Director: Motonobu Hori
Series Composition: Kimiko Ueno
Script: Kimiko Ueno
Music:
Taisei Iwasaki
Yuma Yamaguchi
Original creator:
Jōmyaku
Mizuki Yoda
Character Design: Kōhei Tokuoka
Art Director: Yūki Yokoyama
Chief Animation Director: Kōhei Tokuoka
Art design: Toshiki Amata
Sound Director: Haru Yamada
Cgi Director: Taiki Nagashima
Director of Photography: Gō Kanbayashi

Color design: Hiroko Umezaki
Costume Design: Kotono
Editing: Kumiko Sakamoto
Prop Design:
Ayumi Nagaki
Ryō Hirata
Sound Effects: Tomokazu Mii
Sub-Character Design: Yurika Sako
Theme Song Performance:
AKASAKI (ED)
Yurina Hirate (OP)
Haruki Ishiya as Hikaru Gero
Shion Wakayama as Mei Kinosaki

Anna Nagase as Kyōko Himekawa
Asaki Yuikawa as Shiori Ureshino
Haruka Shiraishi as Akari Gero
Hinano Shirahama as Kimie Arashiyama
Isamu Yūsen as Toshiki Hanamaki
Mariya Ise as Shizuku Ushio
Simba Tsuchiya as Piichi Nakagawa
Sōma Saitō as Genya Naruko

Akihiro Tajima as security guard (ep 2)
Eri Momose as secretary (ep 1)
Hiroki Matsukawa as Knuckle Saturnia (ep 2)
Hiroyuki Yoshino as
Tomohisa Itabashi (ep 1)
Yōsuke Itabashi (ep 1)
Keina Yamada as woman (ep 2)
Kōsuke Takaguchi as Monjirō Awa (ep 2)
Manami Hanawa as
My Girl, She's Like the Sun, Yeah? (ep 2)
woman (ep 1)
Masaomi Yamahashi as Ken'ichi Kitami (ep 2)
Masato Niwa as
poison taster (ep 1)
Takeru Shiratori (ep 2)
Masaya Fukunishi as president (ep 1)
Midori Shibuki as woman (ep 1)
Misaki Akiyama as woman (ep 2)
Raido Nakanishi as sailor (ep 2)
Rena Maeda as Takeru Shiratori's wife (ep 2)
Ryōsuke Tamura as human chair (ep 1)
Ryōtarō Okiayu as narration (eps 1-2)
Saya Hirose as secretary (ep 1)
Seiya Yamamoto as sailor (ep 2)
Takaaki Torashima as security chief (ep 2)
Yuji Murai as sailor (ep 2)
Japanese companies
2nd Key Animation:
Bones Animation Dept. (ep 1)
Wish (ep 1)
3DCGI: Sanzigen
Animation Production: Bones Film
Background Art:
Bihou, Inc. (ep 1)
Broadcaster:
Fuji Television Network (Carnival!!)
Kansai Telecasting Corporation
Editing: Sony PCL
Finish Animation:
Animesh (ep 1)
GEEK (ep 1)
Niigata Animation (ep 1)
Taiguan Animation (ep 1)
Wish (ep 1)
In-Between Animation:
01 (ep 1)
Akatsuki (ep 1)
CoMix Wave Films (ep 1)
Cosmo Project (ep 1)
DR Movie (ep 1)
EMT Squared (ep 1)
FAI (ep 1)
Grain (ep 1)
M.S.J Musashino Production (ep 1)
Seven Arcs (ep 1)
Seven Seas (ep 1)
SHAFT (ep 1)
Shuka (ep 1)
Studio 4°C (ep 1)
Studio Lings (ep 1)
Toei Animation (ep 1)
xenron (ep 1)
Photography: Bones Film Photography Department (ep 1)
Production Supervision: BONES
English staff
English companies
(none)
Internet Streaming: Crunchyroll
English cast
(none)
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