Anime · SAGA TV
Marriage Toxin
Who's in it
Cast
The principal ensemble across the run of the series.
Haruki Ishiya
Hikaru Gero (voice)
13 eps
Shion Wakayama
Mei Kinosaki (voice)
13 eps
Anna Nagase
Kyoko Himekawa (voice)
13 eps
Mariya Ise
Shizuku Ushio (voice)
13 eps
Asaki Yuikawa
Shiori Ureshino (voice)
13 eps
Soma Saito
Genya Naruko (voice)
13 eps
Hinano Shirahama
Kimie Arashiyama (voice)
13 eps
Shimba Tsuchiya
Piichi Nakagawa (voice)
13 eps
Haruka Shiraishi
Akari Gero (voice)
13 eps
Isamu Yusen
Toshiki Hanamaki (voice)
13 eps
The Nutevio profile
TV DNA
How Marriage Toxin actually feels to watch, measured on the traits our editors track across every series.
Signature profile
Marriage Toxin reads strongest on Bingeability, Spectacle and Humour.
How hard it is to stop after one episode.
Visual ambition — scale, craft and set-piece filmmaking.
How often the series is genuinely funny, by design.
How fully written and psychologically layered the ensemble is.
The scale, internal logic and texture of the world.
How much each hour depends on the one before it.
How often an episode ends on a hook you can't ignore.
The sustained pressure the series keeps you under.
How much the series is designed to affect you.
The story
What it's about
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. The most challenging mission of his life begins!
Where the series peaks
Best Episodes
The hours that define the show, ranked by audience response and editorial signal.
S01E03 · Signature episode
My First
Gero fights a Water Master to rescue Himekawa, but his real challenge is taking her on a date afterward.
S01E01 · Signature episode
The Poison Master's Search for a Bride
An assassin must marry to appease his clan and save his sister. Small problem: He doesn't know how to date.
- Directed by Motonobu Hori
- Written by Kimiko Ueno
S01E02 · Signature episode
What Is "Charm," Anyway?
Kinosaki takes Gero to practice dating in a floating art museum that becomes the scene of a heist.
S01E04 · Signature episode
The Sound Master
Gero goes undercover as a student to guard a corporate heiress, but he isn't the only Master on campus.
S01E05 · Signature episode
Lord Chladni
A test of courage seems like a romantic opportunity, but it turns out to be a deadly trap.
Behind the series
Created by
Showrunners, creators, executive producers and the writers who set the voice of the series.
The craft
Key Crew
Directing, writing, production, camera, music and editing.
Executive production
- Takuya KanayaExecutive Producer
- Yoshihiro OyabuExecutive Producer
- Yukari TachibanaProducer
- Hayato SagaExecutive Producer
- Shunsuke MatsudaExecutive Producer
- Ryo FukuharaProducer
Writing
- Kimiko UenoWriter
Direction
- Motonobu HoriDirector
- Yuka HashimotoDirector
Cinematography
- Tsuyoshi KanbayashiDirector of Photography
Music
- Taisei IwasakiOriginal Music Composer
- Yuma YamaguchiOriginal Music Composer
Where to watch
Streaming
Availability verified against regional listings.
- Amazon VideoBuy
- Apple TV StoreBuy
- CrunchyrollStreaming
- Crunchyroll Amazon ChannelStreaming
- YouTube TVStreaming
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