|Alternative Titles||: コメット・ルシファー|
|Status||: Finished Airing|
|Aired||: Oct 4, 2015 to Des 20, 2015|
|Producers||: Sentai FilmworksL, 8bit|
|Genres||: Adventure, Fantasy|
|Duration||: 23 min. per ep.|
Gift, a world covered in glittering blue crystals called gifdium. Sougo Amagi is a boy who lives in the town of Garden Indigo, which has prospered from the mining of these crystals. Sougo, whose hobby is collecting rare crystals, one day becomes involved in a dispute between classmates Kaon, Roman, and Otto. He wanders deep into the ruins of a mine and discovers an underground lake. There, Sougo meets a mysterious girl with blue hair and red eyes. Who is this girl, and what will their meeting bring? The door to an adventure opens with their newly formed bond.