
MARRIAGETOXIN
マリッジトキシン
Deadly arts and dark secrets collide in a world of high-stakes deception. Hikaru's quest to protect his sister sparks a thrilling game of love and loyalty. If you love toxic romances, this is unmissable.
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 that Hikaru encounters Mei Kinosaki, a brilliant marriage swindler who becomes the target of his latest job. Realizing that the only way of solving the family succession problem and protecting his sister is through marriage, Hikaru impulsively asks Mei for help in finding a bride. (Source: EMOTION Label Channel)
Editorial mood guide by WatchMoodly Editorial Team · Base catalog metadata via AniList.
7.5/10 avg
Studio: bones film
Mood Rationale & Viewing Guide: Should You Watch MARRIAGETOXIN?
Within our mood classification system, MARRIAGETOXIN aligns strongest with a romantic / happy / sad viewing mood (love stories that will make your heart flutter). Key tonal signals include action romance, comedy drama, poison masters, feudal japan, dark fantasy, strong male lead, making it a strong pick when you want a story driven by those themes without spoilers.
Watch If…
- •You want a action, comedy, drama anime series released in 2026 from bones film.
- •You enjoy themes centered on action romance, comedy drama, poison masters, feudal japan.
- •You want a compact 13-episode run you can finish in a weekend (~24 min per episode).
Skip If…
- •You are looking for a purely lighthearted, zero-stress comfort watch without dark or tense themes.
- •You only watch completed stories and prefer not to wait for upcoming episodes.
Official Trailer

Official Streaming Platforms
Frequently Asked Questions About MARRIAGETOXIN
Where can I watch MARRIAGETOXIN (2026) legally online?
MARRIAGETOXIN is available through official platforms including Crunchyroll. Use the streaming links on this page to open the licensed release directly.
What mood and genres does MARRIAGETOXIN fit best?
MARRIAGETOXIN is classified under Action, Comedy, Drama, Romance and best matches a romantic or happy or sad mood, featuring elements of action romance, comedy drama, poison masters, feudal japan, dark fantasy.
How many episodes does MARRIAGETOXIN have?
MARRIAGETOXIN (2026) is currently marked as ongoing with 13 episodes, averaging 24 minutes per episode.
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