Overview
MARRIAGETOXIN adapts Joumyaku's manga, with original character designs by Mizuki Yoda. BONES FILM produced 13 episodes, airing from 7/4/2026. It is set in a world of Masters, where the Poison Masters of the Five Great Families hold the most fearsome power. Hikaru Gero, heir to the Gero Family, has lived his whole life in the underworld, far from love or marriage.
OtaHub's take
When the family head decrees that Hikaru's sister must bear an heir, Hikaru resolves to protect her at all costs and then meets Mei Kinosaki, a brilliant marriage swindler who is the target of his latest job. The genres are action, comedy, drama and romance. Motonobu Hori directs, Kimiko Ueno handles series composition, and a second season is on record as the follow-up.
Verdict
It suits viewers who like action mixed with comedy and romance in an assassin setting, with a couple who clash and slowly bond. This is the first part, so you can start right away.
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