← Marriage Toxin

Season 1

13 episodes · 2026

  1. 1

    The Poison Master's Search for a Bride

    Apr 7, 202624 min★ 8.1

    An assassin must marry to appease his clan and save his sister. Small problem: He doesn't know how to date.

  2. 2

    What Is "Charm," Anyway?

    Apr 14, 202624 min★ 8.0

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

  3. 3

    My First

    Apr 21, 202624 min★ 8.0

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

  4. 4

    The Sound Master

    Apr 28, 202624 min★ 7.4

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

  5. 5

    Lord Chladni

    May 5, 202624 min★ 7.4

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

  6. 6

    Together with Me

    May 12, 202624 min★ 8.1

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

  7. 7

    The Bug Master's Wedding

    May 19, 202624 min★ 7.9

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

  8. 8

    The Hitman Hunter

    May 26, 202624 min★ 7.9

    Gero takes a job to protect a fellow Master from a man who can go toe-to-toe with the expert assassins.

  9. 9

    The Animal Kingdom

    Jun 2, 202624 min★ 7.7

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

  10. 10

    Good-for-Nothing

    Jun 9, 202624 min★ 7.8

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

  11. 11

    Offering

    Jun 16, 202624 min★ 7.9

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

  12. 12

    Heart and Soul

    Jun 23, 202624 min★ 8.4

    To stand a chance against the Beast Master, Gero must get in touch with the essence of his Poison Blood.

  13. 13

    Thanks, Man

    Jun 30, 202624 min★ 8.0

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