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The Best Episodes of Marriage Toxin Season 1

Every episode of Marriage Toxin Season 1 ranked from best to worst. Discover the Best Episodes of Marriage Toxin Season 1!

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

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Seasons2

All12

Episode Rankings

  1. #1 Fan Favorite
    Marriage Toxin Season 1 Episode 1 - The Poison Master's Search for a Bride
    8.1/10(475 votes)

    #1 - The Poison Master's Search for a Bride

    S1:E1

    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

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  2. Marriage Toxin Season 1 Episode 2 - What Is "Charm," Anyway?
    8.0/10(397 votes)

    #2 - What Is "Charm," Anyway?

    S1:E2

    Kinosaki takes Gero to practice dating in a floating art museum that becomes the scene of a heist.

    Director:Unknown
    Writer:Unknown

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  3. Marriage Toxin Season 1 Episode 3 - My First
    8.1/10(367 votes)

    #3 - My First

    S1:E3

    Gero fights a Water Master to rescue Himekawa, but his real challenge is taking her on a date afterward.

    Director:Unknown
    Writer:Unknown

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  4. Marriage Toxin Season 1 Episode 4 - The Sound Master
    7.4/10(326 votes)

    #4 - The Sound Master

    S1:E4

    Gero goes undercover as a student to guard a corporate heiress, but he isn't the only Master on campus.

    Director:Unknown
    Writer:Unknown

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  5. Marriage Toxin Season 1 Episode 5 - Lord Chladni
    7.4/10(302 votes)

    #5 - Lord Chladni

    S1:E5

    A test of courage seems like a romantic opportunity, but it turns out to be a deadly trap.

    Director:Unknown
    Writer:Unknown

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  6. Marriage Toxin Season 1 Episode 6 - Together with Me
    8.1/10(335 votes)

    #6 - Together with Me

    S1:E6

    Panicked students try to sacrifice Ureshino, and stopping Naruko is the only way to make them see reason.

    Director:Unknown
    Writer:Unknown

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  7. Marriage Toxin Season 1 Episode 7 - The Bug Master's Wedding
    7.9/10(281 votes)

    #7 - The Bug Master's Wedding

    S1:E7

    Gero goes to see his friend get married, only to run into some particularly unwelcome wedding crashers.

    Director:Naomi Mikamiyama
    Writer:Kimiko Ueno

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  8. Marriage Toxin Season 1 Episode 8 - The Hitman Hunter
    7.9/10(262 votes)

    #8 - The Hitman Hunter

    S1:E8

    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

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  9. Marriage Toxin Season 1 Episode 9 - The Animal Kingdom
    7.7/10(244 votes)

    #9 - The Animal Kingdom

    S1:E9

    To save Arashiyama, Gero and friends storm into the Beast Clan's home ground.

    Director:Unknown
    Writer:Unknown

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  10. Marriage Toxin Season 1 Episode 10 - Good-for-Nothing
    7.8/10(226 votes)

    #10 - Good-for-Nothing

    S1:E10

    Gero and Arashiyama start to bond, but a run-in with their biggest enemy ruins the mood.

    Director:Unknown
    Writer:Unknown

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  11. Marriage Toxin Season 1 Episode 11 - Offering
    7.9/10(217 votes)

    #11 - Offering

    S1:E11

    Kinosaki and Piichi sneak into a Beast Clan lab and witness bizarre experiments with blood.

    Director:Unknown
    Writer:Unknown

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  12. Marriage Toxin Season 1 Episode 12 - Heart and Soul
    8.4/10(254 votes)

    #12 - Heart and Soul

    S1:E12

    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

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  13. Marriage Toxin Season 1 Episode 13 - Thanks, Man
    8.0/10(188 votes)

    #13 - Thanks, Man

    S1:E13

    Arashiyama throws a party to thank Gero, and Kinosaki sets out to make sure it takes a romantic turn.

    Director:Unknown
    Writer:Unknown

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Season 1 Ratings Summary

"The Poison Master's Search for a Bride" is the best rated episode of "Marriage Toxin" season 1. It scored 8.1/10 based on 475 votes. Directed by Motonobu Hori and written by Kimiko Ueno, it aired on 4/7/2026. This episode is rated 0.1 points higher than the second-best, "What Is "Charm," Anyway?".