Marriage Toxin's second season has a promo video and a new key visual. The reveal landed on September 8, roughly five months after the first season wrapped its April 7 run, and it is the first real look at where Jōmyaku and Mizuki Yoda's assassin-turned-matchmaker premise goes next.
Quick answer
Marriage Toxin season 2 released a promo video and a new key visual on September 8, 2026, per Animenewsnetwork. The first season, based on the manga by Jōmyaku and Mizuki Yoda, premiered on April 7, 2026. No premiere date for season 2 has been announced yet. Per SenpaiRanks, the series holds 7.27 on our Consensus board.
The setup
An assassin from a family of assassins is told to get married. That is the joke, and the series has been disciplined about not over-explaining it — the comedy runs on Gero taking matchmaking with exactly the seriousness he brings to contract killing. The new promo leans into the visual gag rather than the plot, which suggests season 2 is continuing the tone rather than escalating it.
Production side
Same source material, same premise, no staff shake-up announced with the video. The key visual is a straight continuation of the first season's design language rather than a reset — worth noting because romantic comedies that change art direction between seasons usually lose the audience that liked the first one.
Calendar slot
No date yet. The promo arriving in early September puts it in the window where a winter 2027 or spring 2027 announcement would be normal, but nothing has been confirmed and we are not going to guess. When the date lands it goes into our fall and beyond premiere calendar, and the live view is on our schedule page.
Per SenpaiRanks, Marriage Toxin sits at 7.27 on both axes — a comfortable mid-tier comedy result. If you watched the first season, rating it on its show page is what moves that number before season 2 arrives.
Frequently asked questions
Q: When does Marriage Toxin season 2 premiere?
A: No premiere date has been announced. The September 8, 2026 reveal covered a promo video and a key visual only.
Q: When did Marriage Toxin season 1 air?
A: The first season premiered on April 7, 2026.
Q: What is Marriage Toxin based on?
A: The manga by Jōmyaku and Mizuki Yoda.
Q: Is Marriage Toxin good?
A: It holds 7.27 on both the Consensus and Quality axes on SenpaiRanks — solid mid-tier for a romantic comedy.