TV SERIES

Marriage Toxin

7.4/10
TMDB54 votes
2026Original: Japanese2 seasons

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!

Genres: Animation, Action & Adventure, Comedy
Cast: Haruki Ishiya, Shion Wakayama, Anna Nagase, Mariya Ise, Asaki Yuikawa

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THE STORY & THE PEOPLE

About Marriage Toxin

Marriage Toxin (2026) is a TV series in the animation, action & adventure, comedy genres. The cast includes Haruki Ishiya, Shion Wakayama, Anna Nagase, Mariya Ise.

Released
2026-04-07
Original language
Japanese
Seasons
2
Episodes
13
Status
Returning Series
Production countries
Japan
Production companies
BONES Film, Bandai Namco Filmworks, BONES, Kansai Television, dentsu, Bandai Namco Music Live

Marriage Toxin cast & characters

Audience reviews

7.4/10 from 54 TMDB votes. Ratings and reviews are supplied by TMDB. Reviews are attributed to their original authors.

ivvnlly

TMDB member review

Good anime, i really enjoyed, even if i dont like the type of romance between 1 boy and various girls. The fights were incredible good, and honestly i fell for Gero at the end with his shy face. The characters are very cute and interesting, really liked the dynamic, it’s wasn’t too hard. I would recommend it, even just because it’s a very fighting anime.

Questions about Marriage Toxin

What is Marriage Toxin 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!

Who stars in Marriage Toxin?

Haruki Ishiya, Shion Wakayama, Anna Nagase, Mariya Ise, Asaki Yuikawa, Soma Saito. See the cast cards above for character names.

How can I watch Marriage Toxin online?

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Does Marriage Toxin have subtitles or dubbed audio?

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