Summary
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.
Good for
- Date night
- Friends night
- Teens
Where to watch
Fingerprint
At a glance
Critics vs audiences
Only audience scores so far
Audiences 73GoodWatch 74
IMDb7.3
Time to watch it all
5 h 12 min
13 episodes, about 24 min each
An episode a night: about 2 weeks.
Reach
Streams in 50 countries
+40First aired
2026
April 7, 2026
Still running
Genres
AnimationAction & AdventureComedyLanguage
Japanese
Original language
Made in
- Japan
Rated
- TV-14United States
Not for young kids: it's rated TV-14 in the United States for violence, strong language, and sexual content, and the viewing guide lists it for teens and adults.
What's in it
- ViolenceModerate
- Gore, disturbing imagesLittle or none
- Frightening scenesLittle or none
- Sex, nudityMild
- Dark themesMild
- Strong languageNamed in the advisories
In white: what the content advisories name. Levels from the title analysis.
Viewing guide
AdultsDate NightFriends NightPartner WatchSolo WatchTeensBinge-FriendlyThought-ProvokingNot listed for kids or family movie night.
and 7 more10 people
- Haruki IshiyaHikaru Gero (voice)13 episodes
- Shion WakayamaMei Kinosaki (voice)13 episodes
- Anna NagaseKyoko Himekawa (voice)13 episodes
- Mariya IseShizuku Ushio (voice)13 episodes
- Asaki YuikawaShiori Ureshino (voice)13 episodes
- Soma SaitoGenya Naruko (voice)13 episodes
- Hinano ShirahamaKimie Arashiyama (voice)13 episodes
- Shimba TsuchiyaPiichi Nakagawa (voice)13 episodes
Haruka ShiraishiAkari Gero (voice)13 episodes
Isamu YusenToshiki Hanamaki (voice)13 episodes
Directing · 2
- Yuka Hashimoto Director
- Naomi Mikamiyama Director
Production · 8
- Yoshihiro Oyabu Executive Producer
- Hiroyuki Kikukawa Executive Producer
- Hayato Saga Executive Producer
- Takuya Kanaya Executive Producer
- Shunsuke Matsuda Executive Producer
- Tatsuya Saito Producer
Camera · 1
- Tsuyoshi Kanbayashi Director of Photography
Editing · 1
- Kumiko Sakamoto Editor
Sound · 3
- Taisei Iwasaki Original Music Composer
- Yuma Yamaguchi Original Music Composer
- Tomokazu Mii Sound Effects
Art · 3
- Heo Jong Storyboard Artist
- Hideyuki Satake Storyboard Artist
- Yuki Yokoyama Art Direction
Costume & Make-Up · 1
- Kotono Costume Design
Other crew · 47
- Motonobu Hori Series Director, Director, Storyboard Artist
- Kimiko Ueno Series Composition, Writer
- Kohei Tokuoka Supervising Animation Director, Character Designer
- Yurika Sako Character Designer, Animation Director
- Yurina Hirate Theme Song Performance
- Haru Yamada Sound Director
Marriage Toxin episodes
2 seasons · 13 episodes
Episodes
- S1 E1 Dokutsukai no Konkatsu, 8.1
- S1 E2 Miryoku tte Nani?, 8.0
- S1 E3 Hajimete no Aite, 8.0
- S1 E4 Ototsukai, 7.4
- S1 E5 Chladni-sama, 7.4
- S1 E6 Watashi to Issho ni, 8.1
- S1 E7 Mushitsukai no Kekkonshiki, 7.9
- S1 E8 Koroshiyagari, 7.9
- S1 E9 Doubutsu Kingudamu, 7.7
- S1 E10 Yakudatazu, 7.8
- S1 E11 Kumotsu, 7.9
- S1 E12 Shinzui, 8.4
- S1 E13 Senkyu na, 8.0
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