Animation•Action & Adventure•Comedy

All Episodes of Marriage Toxin

Browse all episodes of Marriage Toxin

Binge this in 5h 12m•Peaking at 8.4/10

For centuries, the deadly arts have been perfected by Masters, and Five Great Families hold the greatest power and influence. Hikaru Gero, an heir to the Gero family, lives in the underworld as an elite

Airs on

Fuji TV Tokai Television Broadcasting Kansai TV Fukui TV

Select Season:

Season 1

8.1/10482 votes
The Poison Master's Search for a Bride
Season 1 Episode 1 - Aired 4/7/2026
An assassin must marry to appease his clan and save his sister. Small problem: He doesn't know how to date.
Director: Motonobu Hori
Writer: Kimiko Ueno
8.0/10402 votes
What Is "Charm," Anyway?
Season 1 Episode 2 - Aired 4/14/2026
Kinosaki takes Gero to practice dating in a floating art museum that becomes the scene of a heist.
Director: Unknown
Writer: Unknown
8.0/10372 votes
My First
Season 1 Episode 3 - Aired 4/21/2026
Gero fights a Water Master to rescue Himekawa, but his real challenge is taking her on a date afterward.
Director: Unknown
Writer: Unknown
7.4/10331 votes
The Sound Master
Season 1 Episode 4 - Aired 4/28/2026
Gero goes undercover as a student to guard a corporate heiress, but he isn't the only Master on campus.
Director: Unknown
Writer: Unknown
7.4/10308 votes
Lord Chladni
Season 1 Episode 5 - Aired 5/5/2026
A test of courage seems like a romantic opportunity, but it turns out to be a deadly trap.
Director: Unknown
Writer: Unknown
8.1/10341 votes
Together with Me
Season 1 Episode 6 - Aired 5/12/2026
Panicked students try to sacrifice Ureshino, and stopping Naruko is the only way to make them see reason.
Director: Unknown
Writer: Unknown
7.9/10290 votes
The Bug Master's Wedding
Season 1 Episode 7 - Aired 5/19/2026
Gero goes to see his friend get married, only to run into some particularly unwelcome wedding crashers.
Director: Naomi Mikamiyama
Writer: Kimiko Ueno
7.9/10271 votes
The Hitman Hunter
Season 1 Episode 8 - Aired 5/26/2026
Gero takes a job to protect a fellow Master from a man who can go toe-to-toe with the expert assassins.
Director: Unknown
Writer: Unknown
7.7/10251 votes
The Animal Kingdom
Season 1 Episode 9 - Aired 6/2/2026
To save Arashiyama, Gero and friends storm into the Beast Clan's home ground.
Director: Unknown
Writer: Unknown
7.8/10233 votes
Good-for-Nothing
Season 1 Episode 10 - Aired 6/9/2026
Gero and Arashiyama start to bond, but a run-in with their biggest enemy ruins the mood.
Director: Unknown
Writer: Unknown
7.9/10223 votes
Offering
Season 1 Episode 11 - Aired 6/16/2026
Kinosaki and Piichi sneak into a Beast Clan lab and witness bizarre experiments with blood.
Director: Unknown
Writer: Unknown
8.4/10264 votes
Heart and Soul
Season 1 Episode 12 - Aired 6/23/2026
To stand a chance against the Beast Master, Gero must get in touch with the essence of his Poison Blood.
Director: Yuka Hashimoto
Writer: Kimiko Ueno
8.0/10197 votes
Thanks, Man
Season 1 Episode 13 - Aired 6/30/2026
Arashiyama throws a party to thank Gero, and Kinosaki sets out to make sure it takes a romantic turn.
Director: Unknown
Writer: Unknown