Anime Overview
Marriagetoxin
Hikaru Gero is the heir of a notorious clan of poison specialists, trained for a life in the shadows and bound by strict family expectations. When a succession crisis threatens his sister's future, he unexpectedly recruits Mei Kinosaki, a clever marriage con artist who was supposed to be his next target. Together they form an uneasy partnership that blends…
Characters
Meet the featured characters and Japanese voice actors tied to Marriagetoxin before opening the full characters page.
Mei Kinosaki
Main | Japanese VA: Wakayama, Shion
Kimie Arashiyama
Supporting | Japanese VA: Shirahama, Hinano
Hikaru Gero
Main | Japanese VA: Ishiya, Haruki
Kyouko Himekawa
Supporting | Japanese VA: Nagase, Anna
Shiori Ureshino
Supporting | Japanese VA: Yuikawa, Asaki
Genya Naruko
Supporting | Japanese VA: Saitou, Souma
Related Anime
Browse the key sequel, prequel, and side-story entries linked to Marriagetoxin before opening the full watch-order flow.
Marriagetoxin 2nd Season
Sequel
Staff
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Hori, Motonobu
Director
Joumyaku
Original Creator
Ueno, Kimiko
Script, Series Composition
Fukuhara, Ryou
Producer
Ikeda, Narumi
Producer
Matsumoto, Yuri
Producer
Latest Episodes
A quick static snapshot of recent tracked episodes for Marriagetoxin before the interactive guide loads.
Episode 12: Heart and Soul
Aired Jun 23, 2026
Episode 11: Offering
Aired Jun 16, 2026
Episode 10: Good-for-Nothing
Aired Jun 9, 2026
More Guide Pages
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Marriagetoxin episode guide
13 tracked episodes