MARRIAGETOXIN (TV)

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Alternative title:
Marriage Toxin
マリッジトキシン (Japanese)
Objectionable content: Significant
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.
Running time: 23 minutes
Episode titles: We have 9
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
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Japanese staff
Japanese cast
Director: Motonobu Hori
Series Composition: Kimiko Ueno
Script: Kimiko Ueno
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

Background Art: Hyo Kim (Bihou; ep 7)
Color design: Hiroko Umezaki
Costume Design: Kotono
Sound Effects: Tomokazu Mii
Sub-Character Design: Yurika Sako
Theme Song Arrangement:
AKASAKI (ED)
DAIKI (ED)
Fred Ball (OP)
Theme Song Composition:
AKASAKI (ED)
Fred Ball (OP)
Kanata Okajima (OP)
Theme Song Lyrics:
AKASAKI (ED)
Kanata Okajima (OP)
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)
Chiho Utsumiya as Hikaru (child; eps 3, 7)
Daichi Furusawa as
new student (ep 4)
student (eps 5-6)
Eri Momose as secretary (ep 1)
Hana Shimano as
female high school student (ep 3)
Ōsawa (eps 5-6)
Hiroki Matsukawa as Knuckle Saturnia (eps 2-3)
Hiroyuki Yoshino as
Tomohisa Itabashi (ep 1)
Yōsuke Itabashi (ep 1)
Hisao Egawa as Toshiki's father (ep 7)
Honami Obata as third son (ep 7)
Isshin Chiba as Kazuhito Ureshino (eps 4-6)
Kazuya Iwasawa as
new student (ep 4)
student (eps 5-6)
Kazuyuki Okitsu as Tōshirō Dōgo (ep 8)
Keina Yamada as woman (ep 2)
Kōsuke Takaguchi as Monjirō Awa (eps 2-3)
Manami Hanawa as
Ageha Saturnia (ep 3)
My Girl, She's Like the Sun, Yeah? (ep 2)
woman (ep 1)
Masaomi Yamahashi as Ken'ichi Kitami (eps 2-3, 5)
Masato Niwa as
master of ceremonies (ep 7)
Naruko's father (ep 6)
poison taster (ep 1)
Takeru Shiratori (ep 2)
Masaya Fukunishi as president (ep 1)
Megumi Toyoguchi as Futae Ureshino (eps 4, 6)
Midori Shibuki as woman (ep 1)
Misaki Akiyama as woman (ep 2)
Miyako Kobayashi as second son (ep 7)
Miyuki Wakayama as
senpai (ep 4)
student (eps 5-6)
Momoko Seto as garden eel (ep 8)
Raido Nakanishi as sailor (ep 2)
Rena Maeda as Takeru Shiratori's wife (ep 2)
Riri Yoshikawa as
Anna Hanamaki (ep 7)
eldest son (ep 7)
Ruka Shōji as student (eps 4-6)
Ryōsuke Tamura as
human chair (ep 1)
Taki (eps 4-6)
Ryōtarō Okiayu as
narration (eps 1-2, 4-5, 8)
sensei (eps 3, 7)
Satomi Arai as Sirius (ep 8)
Sawa Konami as student (eps 4-6)
Saya Hirose as secretary (ep 1)
Seiya Yamamoto as
man (ep 3)
sailor (ep 2)
Shinji Kawada as Mitsuhiko Ureshino (eps 4-6)
Takaaki Torashima as
giant shark employee (ep 3)
hitman (ep 6)
Matagi Club (ep 8)
security chief (ep 2)
Takahiko Nagasaki as student (eps 4-6)
Takayuki Nakatsukasa as RYOMA (ep 7)
Takuya Inagaki as Tsunagi (ep 7)
Yasuhiro Kikuchi as professor (eps 4, 6)
Yoshihisa Kawahara as Masahide Yamada (ep 7)
Yuji Murai as sailor (ep 2)
Yuka Shiono as mother (ep 3)
Yume Miyamoto as Marin Arimura (ep 7)
Yuriko Kita as
Naruko (child; ep 6)
student (ep 5)
Yuuna Morioka as
senpai (ep 4)
student (eps 5-6)
Yuzuki Nasada as student (ep 5)
Japanese companies
2nd Key Animation:
Bones Animation Dept. (ep 1)
Wish (eps 1-6)
3DCGI: Sanzigen
Animation Production: Bones Film
Background Art:
Bihou, Inc. (eps 1-6)
Editing: Sony PCL
Finish Animation:
Animesh (ep 1)
GEEK (ep 1)
Niigata Animation (ep 1)
Taiguan Animation (ep 1)
Wish (eps 1-6)
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 (eps 1-6)
Production Supervision: BONES
English staff
English cast
ADR Director: Lee George
ADR Script: Clayton Browning

ADR Engineer: Paola Guzman
ADR Mixing: Matt Grounds
ADR Producer: Zach Bolton
Assistant ADR Director: Ryan Negron
Casting Director: Lee George
Brittney Karbowski as Mei Kinosaki
Ethan Gallardo as Hikaru Gero

Alex Hom as Genya Naruko
Katelyn Barr as Ushio Shizuku
Maganda Marie as Kyōko Himekawa
Marcus D. Stimac as Bug Master/Toshiki Hanamaki
Taylor Murphy as Akari Gero

Aiden Call as Taki
Ben Bryant as Kazuhito Ureshino (eps 4-6)
Cody Savoie as Yosuke Itabashi
Corey Wilder as Takeru Shiratori (ep 2)
Daniel Van Thomas as Naruko's Father
Hannah Magers as Shiratori's Wife
Jamie Snowden as Ken'ichi Kitami
Michelle Rojas as Futae Ureshino
Monty Thompson as Mitsuhiko Ureshino
Parker Gray as Tomohisa Itabashi
Richard C. Barcenas as Ageha's Father
Tom Aglio as Hitman (ep 6)
Tyson Rinehart as Monjiro Awa
Xan Cramer as Narrator

English companies
Internet Streaming: Crunchyroll
French staff
French cast
Dubbing Director: Nelly Rebibo

Adaptation: David Sauvage
Alexandre Coadour as Hikaru Gero
Audrey Le Meur as Mei Kinosaki

Cécile Marmorat as Kyōko Himekawa
Naomi Azran as Akari Gero

Romain Pichon as Tomohisa Itabashi
Vincent Vilain as Pilote
Yann Pichon as Président
Yanni Lotta as Yosuke Itabashi

French companies
Dubbing: Plan B
Spanish staff
Spanish cast
ADR Director: Doris Vargas
Translation: Itzel Hernández
ADR Script: Itzel Hernández
Spanish companies
ADR Production: Plan B
ADR Studio: Plan B3
Internet Streaming: Crunchyroll
Polish staff
Polish cast
Spotting: Andy Ellis (eps 3-4)
(none)
Polish companies
Internet Streaming: Crunchyroll
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