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Alternative Titles

Synonyms: Marriage Toxin
Japanese: マリッジトキシン
English: Marriage Toxin
More titles


Type: Manga
Volumes: Unknown
Chapters: Unknown
Status: Publishing
Published: Apr 20, 2022 to ?
Genre: Action Action
Theme: Adult Cast Adult Cast
Demographic: Shounen Shounen
Serialization: Shounen Jump+
Authors: Yoda, Mizuki (Art), Joumyaku (Story)


Score: 7.391 (scored by 35003,500 users)
1 indicates a weighted score.
Ranked: #37932
2 based on the top manga page. Please note that 'R18+' titles are excluded.
Popularity: #1449
Members: 13,686
Favorites: 140

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Ranked #3793Popularity #1449Members 13,686
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A hitman and a marriage swindler set out on the world's most grueling battle for marriage! Gero is a young man from a clan of hitmen, which has been in existence for hundreds of years. As someone who's never gone to school and lived his life dealing in the dark side of the business, he considers himself to have "no prospects with women" and marriage as "something not for him." However, one day, in fear that their lineage would dissolve, his clan warns Gero that if he doesn't marry and produce an heir, they would have no choice but to...force his little sister into doing "that." Driven to his wits' end, Gero asks the target of his work, a marriage swindler, to...

(Source: MANGA Plus)


Marriagetoxin has been published digitally as an English simulpub through MANGA Plus. The volumes have been published as Marriage Toxin by VIZ Media under the Shonen Jump imprint since January 2, 2024.



Dec 4, 2023
Preliminary (9/? eps)
*Minor Spoilers: Edited Chapter 63
I’m only 9 chapters in, but Marriagetoxin has a well developed storyline and good pacing. That’s the cliff notes version, now into greater detail.

Marriagetoxin is about Hikaru Gero, an assassin for hire of the poison clan, who has to get married to succeed said clan. He does so reluctantly because the clans’ other option is his sister who is already in a relationship with another woman. He is however pretty woeful when interacting with women, and with persistence enlist the help of Mei Kinosaki to aid him in his search for a wife.

This has been a very relatable and intense yet ...
Sep 29, 2023
Preliminary (47/? eps)
Marriagetoxin is an ongoing manga that's an absolute joy to read and it needs more recognition, please give it a chance!

The art is extremely solid, if not fantastic. The panels are stuffed with details that are easy to miss if you're flying through the material, but they do so much to elevate the work as a whole—the amount of care and attention put into this aspect is actually impressive. Action scenes are crisp, easy to follow, and never boring to look at.

The characters, while not anything extraordinary, are strong. It's quite difficult not to fall in love with Gero's character when watching him navigate ...
Mar 24, 2023
Preliminary (17/? eps)
A unfound gem wouldn't be a half bad way to describe MarriageToxin.

MarriageToxin focus’s on two characters a killer you cant help to adore and a adorable goofy femboy and they handle them perfectly. I don't see realistic relationships much in manga but this is definitely a exception as their bond growing and motivation truly did make sense and was enjoyable to watch.

The battle system is fairly creative and enjoyable not bound by many set rules which makes it fun to watch and gives it a nice vibe that makes it feel free.

Naturally this isn't the most serious manga and it really doesn't have to be ...

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Poll: Marriagetoxin Chapter 90 Discussion
ARK-13 - Jun 11
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