Jōmyaku
Description
Jōmyaku is a Japanese manga writer, best known as the author of the action-romance series Marriage Toxin. The creator made their debut in the manga industry in February 2021 with the one-shot Hyper Hard Special Mission, which was released on the Shonen Jump+ platform and illustrated by Mizuki Yoda. A second one-shot, Reisougyou no Arai-kun, followed in March 2021 with a different artistic collaborator.
Jōmyaku’s first and most prominent serialized work is Marriage Toxin, which began publication in Shueisha's Shonen Jump+ digital magazine on April 20, 2022. The series is written by Jōmyaku and illustrated by Mizuki Yoda, marking a continued partnership from their initial one-shot collaboration. As of April 2026, the manga has been collected into seventeen tankobon volumes. The series is published in English by Viz Media under the title Marriage Toxin and is also available digitally through Shueisha's Manga Plus service.
The story of Marriage Toxin follows Hikaru Gero, a young heir to a clan of assassins known as the Poison Clan. To prevent his sister from being forced to bear an heir, Gero seeks to find a wife with the help of Mei Kinosaki, a skilled and unconventional marriage swindler. The narrative blends action, comedy, and romance as Gero takes on dangerous assignments while navigating the complexities of dating and relationships.
The series gained enough recognition to receive an anime television adaptation. Produced by the studio Bones Film, the Marriage Toxin anime premiered in April 2026, airing on Fuji TV's "Ka-Anival!!" programming block and streaming on Crunchyroll. The adaptation is directed by Motonobu Hori with series composition by Kimiko Ueno.
Details about Jōmyaku's personal life, including background, age, and prior professional experience in the industry, remain undisclosed. The creator's professional identity is defined solely by their published work, beginning with their debut one-shots in 2021 and continuing with the ongoing serialization of Marriage Toxin, which represents their major contribution to the manga and anime industry.
Jōmyaku’s first and most prominent serialized work is Marriage Toxin, which began publication in Shueisha's Shonen Jump+ digital magazine on April 20, 2022. The series is written by Jōmyaku and illustrated by Mizuki Yoda, marking a continued partnership from their initial one-shot collaboration. As of April 2026, the manga has been collected into seventeen tankobon volumes. The series is published in English by Viz Media under the title Marriage Toxin and is also available digitally through Shueisha's Manga Plus service.
The story of Marriage Toxin follows Hikaru Gero, a young heir to a clan of assassins known as the Poison Clan. To prevent his sister from being forced to bear an heir, Gero seeks to find a wife with the help of Mei Kinosaki, a skilled and unconventional marriage swindler. The narrative blends action, comedy, and romance as Gero takes on dangerous assignments while navigating the complexities of dating and relationships.
The series gained enough recognition to receive an anime television adaptation. Produced by the studio Bones Film, the Marriage Toxin anime premiered in April 2026, airing on Fuji TV's "Ka-Anival!!" programming block and streaming on Crunchyroll. The adaptation is directed by Motonobu Hori with series composition by Kimiko Ueno.
Details about Jōmyaku's personal life, including background, age, and prior professional experience in the industry, remain undisclosed. The creator's professional identity is defined solely by their published work, beginning with their debut one-shots in 2021 and continuing with the ongoing serialization of Marriage Toxin, which represents their major contribution to the manga and anime industry.
Works
- Topics: Anime overview