Marriage Toxin

Marriage Toxin (2026)

Animation Action & Adventure Comedy

As a deadly assassin from the poison clan, Gero swears he'll never settle down—that is, until the family orders his sister to produce the poison clan's next heir. Refusing to let his sister abandon her chance at true love with her girlfriend, Gero desperately turns to marriage swindler Mei Kinosaki for relationship advice. Can Kinosaki turn this trained killer into a charming husband-to-be?

  • First Air Date: 2026-04-07
  • Total Seasons: 1
  • Total Episodes: 1
  • Network: Fuji TV, Tokai Television Broadcasting, Fukui TV, Hokkaido Cultural Broadcasting, Iwate Menkoi Television, Sendai Television, SAGA TV, Ishikawa TV, TNC, OHK, Kochi Sun Sun Broadcasting, Television Shin Hiroshima System, TV Shizuoka, NST, NBS, Sakuranbo TV, TSK, Ehime Broadcasting, KTS, Fukushima TV, AKT, Toyama Television, TV Kumamoto, Okinawa Television Broadcasting, KTN

Where to Watch Marriage Toxin Online

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Seasons

  • Season 1

    1 Episodes

Trailer

Cast

  • Haruki Ishiya

    Hikaru Gero (voice)

  • Shion Wakayama

    Mei Kinosaki (voice)

  • Anna Nagase

    Kyoko Himekawa (voice)

  • Mariya Ise

    Shizuku Ushio (voice)

  • Asaki Yuikawa

    Shiori Ureshino (voice)

  • Soma Saito

    Genya Naruko (voice)

  • Hinano Shirahama

    Kimie Arashiyama (voice)

  • Shimba Tsuchiya

    Piichi Nakagawa (voice)

  • Haruka Shiraishi

    Akari Gero (voice)

  • Isamu Yusen

    Toshiki Hanamaki (voice)

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