NieA_7 is a tV series anime that premiered in spring 2000, produced by Triangle Staff.

About the production: the story comes from a manga, there are 13 episodes of about 23 minutes and its current status is "finished".

Its main genres are comedy, sci-fi and slice of life, with themes such as Slapstick, Aliens, Female Protagonist and Family Life.

On AniList, NieA_7 has an average score of 66%, a good score, and appears on 16,822 users' lists.

In the 21st century, aliens have arrived on Earth and live among humans. In sleepy Enohana, the dirt-poor student Chigasaki Mayuko finds herself living together with NieA, a low-caste ("Under Seven") alien. While Mayuko struggles diligently to make ends meet, NieA seems to be totally unconcerned with the consequences of her actions. As the odd couple throws off the expected sparks, the wrecked alien mothership looms in the background... (Source: Anime News Network)

Official synopsis from AniList.