Marriage Toxin(2026)
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 assassin. When his sister is pressured to produce an heir, Hikaru asks Mei Kinosaki, a brilliant marriage swindler, to find him a bride. The most challenging mission of his life begins!
- First aired:
- 2026-04-07
- Country:
- JP
- Network:
- Fuji TV, Tokai Television Broadcasting, Kansai TV, 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
Episodes
1. The Poison Master's Search for a Bride
★ 7.02026-04-07 · 24m
An assassin must marry to appease his clan and save his sister. Small problem: He doesn't know how to date.
2. What Is "Charm," Anyway?
★ 7.02026-04-14 · 24m
Kinosaki takes Gero to practice dating in a floating art museum that becomes the scene of a heist.
3. My First
★ 7.42026-04-21 · 24m
Gero fights a Water Master to rescue Himekawa, but his real challenge is taking her on a date afterward.
4. The Sound Master
★ 6.52026-04-28 · 24m
Gero goes undercover as a student to guard a corporate heiress, but he isn't the only Master on campus.
5. Lord Chladni
★ 6.32026-05-05 · 24m
A test of courage seems like a romantic opportunity, but it turns out to be a deadly trap.
6. Together with Me
★ 6.52026-05-12 · 24m
Panicked students try to sacrifice Ureshino, and stopping Naruko is the only way to make them see reason.
7. The Bug Master's Wedding
★ 7.72026-05-19 · 24m
Gero goes to see his friend get married, only to run into some particularly unwelcome wedding crashers.
8. The Hitman Hunter
★ 7.52026-05-26 · 24m
Gero takes a job to protect a fellow Master from a man who can go toe-to-toe with the expert assassins.
9. The Animal Kingdom
★ 7.02026-06-02 · 24m
To save Arashiyama, Gero and friends storm into the Beast Clan's home ground.
10. Good-for-Nothing
★ 7.02026-06-09 · 24m
Gero and Arashiyama start to bond, but a run-in with their biggest enemy ruins the mood.
11. Offering
★ 6.22026-06-16 · 24m
Kinosaki and Piichi sneak into a Beast Clan lab and witness bizarre experiments with blood.
12. Heart and Soul
★ 6.02026-06-23 · 24m
To stand a chance against the Beast Master, Gero must get in touch with the essence of his Poison Blood.
13. Thanks, Man
★ 7.52026-06-30 · 24m
Arashiyama throws a party to thank Gero, and Kinosaki sets out to make sure it takes a romantic turn.
Where to watch
Availability for United States, provided by JustWatch via TMDB. Links open the provider's own listing.
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)
