Where to watch Marriage Toxin
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13 ep.
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Based on all 13 episodes. The defaults of 24 minutes per episode and 60 minutes per day are assumptions. Adjust them to the actual runtime and your own pace.
13 episodes left · about 5h 12m · about 6 days
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2 listed installmentsCompare the series entries and their release periods.
- 2026 SpringMarriage ToxinCurrent
- 2027 WinterMarriage Toxin Season 2
Work info
Marriage Toxin is a Spring 2026 anime. It premiered on April 7, 2026, 13 episodes. The finale (episode 13) aired on June 30, 2026. Streaming services listed: Prime Video, ABEMA, d Anime Store and 6 more.
Broadcast data: Syoboi Calendar
Theme songs
- OP
- Kill or Kiss
Synopsis
In modern Japan, elite assassins called Users work behind the scenes. Hikaru Gero is heir to the Gero family of poison users, one of the five great assassin houses, and excels at their trade. Raised apart from ordinary society and devoted to work, he has never had a relationship. His grandmother, the current family head, announces that his sister Akari will be made to produce an heir to keep their bloodline alive. Having worked to keep Akari out of that world, Hikaru resolves to marry instead. He proposes to Mei Kinosaki, a beautiful, skilled marriage swindler he was sent to kill, thereby saving Mei’s life—only to discover Mei is a man. Mei agrees to advise Hikaru on finding a spouse, matching him with female clients while Hikaru works as their bodyguard. Their search brings them into the lives and troubles of many potential partners.
Synopsis source: Wikipedia (CC BY-SA 4.0)
Episodes
Similar works
Wound & Bandage
OP song · official