A Ninja and an Assassin Under One Roof
A Ninja and an Assassin Under One Roof, also known as NinKoro, is a Japanese manga series by HundredBurger. It has been serialized in ASCII Media Works' shōnen manga magazine Comic Dengeki Daioh "g" since February 2021 and has been collected in six volumes. An anime television series adaptation produced by Shaft aired from April to June 2025.
Plot
A ninja named Satoko Kusagakure is convinced by her leader Kuro to escape her village with other deserters, but without any money or friends in the outside world, Satoko nearly starves until she is saved by another girl named Konoha Koga, who happens to be an assassin. The two girls quickly form a partnership together: Konoha will rise in the rankings to become a top assassin and defend Satoko from other ninjas seeking to hunt down the deserters from the village, and in turn, Satoko will use her ninja magic to help hide the evidence of Konoha's handiwork and clean up Konoha's apartment.Characters
Main characters
;Satoko Kusagakure;Konoha Koga
;Marin Izutsumi
;Kuro
;Yuriko
Other characters
;Roboko;Aoko Yoshida
;Aoi Satou
;Minato Izutsumi
Kusagakure ninjas
;Fumiko Kusagakure;Michiru Kusagakure
;Midori Kusagakure
;Asuka Kusagakure
;Arisa Kusagakure
;Hatsuko Kusagakure
;Ayaka Kusagakure
;Mao Kusagakure
;Sakura Kusagakure
;Kanie Kusagakure
;Karin Kusagakure
;Meiden Kusagakure
;Yukari Kusagakure
;Kanon Kusagakure
Media
Manga
Written and illustrated by HundredBurger, A Ninja and an Assassin Under One Roof began serialization in ASCII Media Works' shōnen manga magazine Comic Dengeki Daioh "g" on February 26, 2021. The series' chapters have been compiled into six volumes as of December 2025. The series will end with the release of its seventh volume.In April 2025, Seven Seas Entertainment announced that they had licensed the series for English publication beginning in December 2025.
Anime
An anime adaptation produced by Shaft was announced on April 23, 2024. It was later confirmed to be a television series directed by Yukihiro Miyamoto, with series composition by the staff of Shaft under the collective pseudonym Fuyashi Tou, screenplays by Maho Nishibe, character designs by Kazuya Shiotsuki, and music composed by Ryūnosuke Kasai. The series aired from April 10 to June 26, 2025, on AT-X and other networks. The opening theme song is "Yarenno? Endless", performed by Kana Hanazawa, while the ending theme song is "NinKoro Dance", performed by HoneyWorks feat. HaKoniwalily.Crunchyroll is streaming the series. Tropics Entertainment licensed the series in Southeast Asia for streaming on the Tropics Anime Asia YouTube channel.
Reception
Manga
The series was nominated for the eighth Next Manga Awards in 2022 in the print category.Anime
In the Spring 2025 anime preview guide from Anime News Network, James Beckett said he knew he was going to love the series from the "first scene," while praising the comedic elements, and the "contrast between the lush production values and the deadpan editing," and promised that it would be "a keeper." Caitlin Moore said that while the series "is not going to be a top-shelf SHAFT title" it had "cute and simple" character designs which echo those in Miss Kobayashi's Dragon Maid and noted how the series threw you out of complacency while it played itself like "a yuri-tinged sitcom about a pair of opposites in violent professions." Richard Eisenbeis called the series a "light-hearted yuri rom-com" and also compared it to Miss Kobayashi's Dragon Maid, saying that the hidden feelings of the characters drew them closer, argued that Shaft had "really brought their A-game this time around" and concluded that enjoying the series depends on whether you like yuri and its style of humor. Rebecca Silverman was less positive, saying that the viewer might find it funny if they liked "clumsy ninjas" and grew weary of the dynamic between Konoha and Satoko, saying that the latter was "a combination of a walking disaster and terribly endearing." While she praised Haruna Mikawa, Satoko's voice actress, Silverman concluded that she could not come up with "any particularly strong feelings" about the series, which she called "perfectly adequate."Eisenbeis reviewed the first two episodes of the series for ANN, saying that while he thought it would a "light-hearted yuri", it was not this at all, with murder jokes, and laughs coming from the "burgeoning relationship between Konoha and Satoko." He also praised the "stunning visuals" and called the episodes "fantastic," and said he could not wait to watch more. Cy Catwell reviewed the first episode for Anime Feminist, giving it warnings for blood and fan service, saying that comedy anime could "often be hit and miss," and said the comedy worked in some senses, but did not have the same charm as The Great Jahy Will Not Be Defeated!. They criticized the "leering shots" toward women in this episode, while noting that the "yuri vibes are strong" but said they were not sure they would watch past the first three episodes.