Fantastic Children is a tV series anime that premiered in fall 2004, produced by Nippon Animation.

About the production: the story comes from an original script, there are 26 episodes of about 24 minutes and its current status is "finished".

Its main genres are adventure, drama, fantasy, mystery, romance and sci-fi, with themes such as Foreign, Reincarnation, Ensemble Cast and Primarily Child Cast.

On AniList, Fantastic Children has an average score of 73%, a good score, and appears on 10,245 users' lists.

The franchise continues in or follows from: Fantastic Children Special.

A group of enigmatic white-haired children has been spotted at different times and places in Europe for over 500 years. Always with the appearance of 11-year-olds, they behave far more mature than they should be, never grow old, and seem to have supernatural power. What they have been seeking is a girl, and the only clue they have is a picture with a crescent moon. Now, in the year of 2012, an athletic boy named Tohma is about to be involved in this centuries-long mystery. (Source: Anime News Network)

Official synopsis from AniList.