# MARRIAGETOXIN
*Also known as: MARRIAGETOXIN / マリッジトキシン*

## Facts
- Format: TV
- Status: airing
- Year: 2026
- Season: SPRING

## Renewal Score
**MARRIAGETOXIN** has a **70% renewal probability** on Courcast (confidence: 81%) as of 2026-06-03.

## Synopsis
For centuries, the deadly arts have been perfected by those known as the Masters.
Among them, the Poison Masters of the Five Great Families hold the most fearsome power and influence. 
Hikaru Gero, heir to the Poison Masters’ Gero Family, has lived his entire life in the underworld, far removed from love or marriage.
But when the Gero Family head decrees that Hikaru’s sister must bear an heir to preserve the bloodline—by force if necessary—Hikaru resolves to protect her at all costs.
It is then 

## About Courcast
Courcast forecasts anime renewal probability using daily signals from streaming platforms, fan communities, and industry sources. Each CourScore (0–100) reflects fandom momentum, streaming performance, source material runway, and franchise history.

- Full details: https://courcast.com/title/marriagetoxin-spring-2026
- API: https://courcast.com/api/public/titles/marriagetoxin-spring-2026
- About Courcast: https://courcast.com/about

*Last updated: 2026-06-03*