# Where to Watch Marriagetoxin

**Marriagetoxin streams on Crunchyroll — the one official home for this underworld action-comedy about a poison-wielding assassin who hires a marriage con artist to help him land a bride. It's a genre-blender in the best way: part crime thriller, part rom-com, part deadpan gag reel, with Bones Film bringing slick fight work and a sharp visual style. If you like your romance with a body count and your action laced with awkward charm, this is an easy one to queue up, and Crunchyroll is where you'll find the full 13-episode run.**

## Where to Watch

- [Crunchyroll](https://www.crunchyroll.com/series/GT00371857/marriagetoxin)

Crunchyroll is the only official streamer in the pack for Marriagetoxin, and it's a natural home — Crunchyroll has become the default library for shounen action-comedies exactly like this one. Watching there keeps things simple and above-board: the whole series in one place, no bouncing between apps or gambling on sketchy unofficial sites.

## Synopsis

Deadly craft has been honed for generations by an elite few, and at the very top sit the poison-wielding clans — five ruling families whose command of toxins makes them the most feared names in a hidden criminal world. Hikaru Gero is the heir to one of those clans, raised from birth inside that shadow trade with zero exposure to anything as ordinary as romance. Trouble erupts when his family's elder rules that Hikaru's sister must produce a child to keep the bloodline going, with or without her consent — and Hikaru swears he'll shield her no matter the cost. The answer walks in as Mei Kinosaki: a gifted con artist who fleeces victims through phony engagements, and, as luck would have it, the very mark Hikaru has been sent to handle. Backed into a corner, he strikes a strange bargain — if a wedding is the one thing that can save his sister and settle who inherits the family, then he'll enlist the sharpest marriage swindler around to find him a bride of his own.

## Fast Facts

- **Format:** TV
- **Episodes:** 13
- **Premiered:** 2026
- **Studio:** bones film inc.
- **Score:** 7.6

## Watch Order

Good news for newcomers — there's no back catalogue to binge first. Marriagetoxin is a standalone adaptation with no earlier anime seasons, so episode one is the front door. It's drawn from a manga, so there's source material waiting if you get hooked, but you don't need to read a single chapter to jump in.

- Marriagetoxin 2nd Season — sequel

## If You Liked This

- **[Spy x Family](https://hozuna.com/anime/spy-x-family)** — The obvious next watch: a lethal professional builds a fake marriage as cover, and the domestic charade slowly becomes the real heart of the story. If Marriagetoxin's 'assassin needs a bride' hook grabs you, Spy x Family nails the same mix of deadly skill, comedic timing, and unexpected warmth.
- **[Liar Game](https://hozuna.com/anime/liar-game)** — Mei's whole trade is the elegant con, and Liar Game is the definitive anime about high-stakes deception and reading your opponent cold. Go here if the marriage-swindler angle — the mind games, the manipulation, the thrill of outsmarting a mark — is what pulls you in.
- **[Kill Blue](https://hozuna.com/anime/kill-blue)** — Another shounen riff on a top-tier assassin dropped into a life he's utterly unequipped for. Kill Blue shares Marriagetoxin's DNA: professional killers, deadpan humor, and the wide gap between lethal competence and everyday cluelessness.
- **[Chainsaw Man](https://hozuna.com/anime/chainsaw-man)** — For the darker, bloodier flip side of Marriagetoxin's criminal underworld — a scrappy anti-hero yanked into an organization of monster-hunting pros. It's grimmer and more chaotic than Marriagetoxin's rom-com core, but if the underworld-of-killers backdrop and anti-hero energy are your draw, Chainsaw Man hits hard.
- **[Frieren: Beyond Journey's End](https://hozuna.com/anime/frieren-beyond-journey-s-end)** — 
- **[Re:Zero Season 4](https://hozuna.com/anime/re-zero-season-4)** — 
- **[Fullmetal Alchemist: Brotherhood](https://hozuna.com/anime/fullmetal-alchemist-brotherhood)** — 
- **[Chainsaw Man: Reze Arc](https://hozuna.com/anime/chainsaw-man-reze-arc)** — 

## FAQ

### Where can I watch Marriagetoxin?

Marriagetoxin streams on Crunchyroll, which is the official home for the series.

### How many episodes does Marriagetoxin have?

The series runs 13 episodes.

### Do I need to watch anything before Marriagetoxin?

No. It's a standalone adaptation with no prior anime seasons, so episode one is the ideal starting point — and if you love it, the original manga is there to continue with.

### What is Marriagetoxin about?

It's an action-comedy with a big romantic streak: the heir to a family of poison-wielding assassins teams up with a brilliant marriage con artist to find himself a bride, blending underworld intrigue, slick action, and dark humor.