A Ninja and an Assassin Under One Roof is a tV series anime that premiered in spring 2025, produced by Shaft.

About the production: the story comes from a manga, there are 12 episodes of about 24 minutes and its current status is "finished".

Its main genres are comedy, with themes such as Female Protagonist, Primarily Female Cast, Assassins and Ninja.

On AniList, A Ninja and an Assassin Under One Roof has an average score of 75%, a very good score, and appears on 30,636 users' lists.

On the way home from school one day, Konoha Koga rescues Satoko Kusagakure, a ninja who escaped her village. Soon, pursuers from the village show up in search of Satoko only to be deftly dealt with by Konoha. As it turns out, the unassuming high schooler is actually an assassin. Thus, the potentially cutthroat cohabitation of a ninja and an assassin begins! (Source: Crunchyroll)

Official synopsis from AniList.