bones film · Spring 2026
Finished TV 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 p…
Also known as Marriage Toxin · วิวาห์แต้มพิษ
Assassins97% Marriage94% Crime90% Urban90% Surreal Comedy89% Primarily Adult Cast86% Super Power82% Bisexual81% Male Protagonist80%
⚠ 3 spoiler tags - click to reveal Femboy Crossdressing Female Harem
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Spring 2026
This series has finished airing — Jun 2026.
Characters & Voice Actors All16 Main2 Supporting14 Background0
Haruki Ishiya
石谷春貴
Japanese Shion Wakayama
若山詩音
Japanese Tomoyo Kurosawa
黒沢ともよ
Japanese Haruka Shiraishi
白石晴香
Japanese Show all 16 characters Staff Gou Kanbayashi
Director of Photography
Kimiko Ueno
Series Composition
Mizuki Yoda
Original Character Design
Kouhei Tokuoka
Character Design
Yurika Sako
Sub Character Design
Hiroko Umezaki
Color Design
Ratings Average 7.6 / 10
Mean 76%
Popularity #82,776
Favourites 1,521
Score Distribution
10 20 30 40 50 60 70 80 90 100
User Activity 82,776 total users
highest rated #41
most popular #16
highest rated #17 SPRING 2026
most popular #7 SPRING 2026
Details Format TV Series
Status Finished Airing
Episodes 13 episodes
Duration 24 min per episode
Aired Spring 2026
Season Number Season 1
Aired Apr 2026 – Jun 2026
Source Manga
Country JP
Hashtag #マリッジトキシン
Studio bones film
Producers Bandai Namco Filmworks, bones, Kansai TV, Dentsu, Bandai Namco Music Live
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MARRIAGETOXIN — AnimeX
