Marriagetoxin Episode 3 Story & Preview Cuts Released: Makes a Proposal to Himekawa

The story and preview images for Episode 3 of the TV anime Marriagetoxin (JP: マリッジトキシン) have been revealed. This episode will air on Tuesday, April 21 at 11:00 PM (JST), and will later be available on various international streaming platforms.

Episode 3 Story

After agreeing to rescue Himekawa, Gero engages in a fierce battle against the Water User. It is revealed that Himekawa, who steals works of art, has a specific objective: to return the pieces to their rightful owners.

Can Gero emerge victorious in this clash between Users? Furthermore, can he fulfill Himekawa's true goal as part of the "Prince Tactic," a marriage hunting strategy devised by Kinosaki? As he takes his first step toward a happy marriage, Gero prefaces his next move by saying, "I have a favor to ask," and presents a certain proposal to Himekawa.

Introduction

Hikaru Gero, a young man inheriting this deadly lineage, has lived his entire life in the underworld, far removed from the touch of romance. To him, the concept of "marriage" was a distant dream. However, to ensure the "Poison User" bloodline survives, the head of the Gero clan issues a cold ultimatum to Hikaru's sister: she will be forced to produce an heir.

Desperate to protect his sister and resolve the succession crisis, Hikaru crosses paths with his latest target—the master marriage swindler, Mei Kinosaki. In a sudden turn of events, Hikaru decides his best option is to get married himself and recruits Mei as his advisor right then and there.

"That’s a first... for a 'proposal,' anyway," Mei remarks.

And so, with a master swindler as his guide, the elite assassin Hikaru embarks on the most difficult mission of his life: Marriage Hunting. Their goal? The perfect marriage. The curtain rises on a world-class, hardcore "marriage-hunting" battle action story, featuring the ultimate buddy duo of an assassin and a con artist!

Spring 2026 Anime List

Source : Marriagetoxin Official