Marriage Toxin

Marriage Toxin

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?

Series 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)

Seasons

Season 1

1 Episodes • 2026