In the present day, hundreds of extraterrestrial species walk the Earth. Some are pacifistic, others violent. Some are here for research purposes, others are career criminals. However, humans don't know they are here.
Status: Finished Airing
Aired: Jan 11, 2011 to Apr 5, 2011
Producers: Studio Pierrot, Aniplex, FUNimation Entertainment, David Production, TV Tokyo Music, Sony Music Entertainment, Sakura Create
Duration: 24 min. per episode