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Blue Drop is an anime, or Japanese animation, series which was based on two mangas, or Japanese comics, of the same name. In the mangas, an all-female alien species known as the Arume invade Earth and take over the Japanese government. Humanity must fight against them in order to regain control of the planet. The anime series takes a slightly different path. It takes places about a year before the mangas. In the anime, the Arume have only recently come to Earth, and are still unnoticed by most humans.

Blue Drop begins when the main character, Mari Wakatake, transfers to a new school. There she meets Hagino Senkoji, a young woman with a strange personality. She is sometimes polite and quiet, and at other times displays an extremely aggressive and violent side. Mari is both wary of her and somewhat attracted to her. Mari can sympathize with Hagino's problems. Mari herself has a troubled past. Everyone living on her home island was suddenly killed in one night. Mari survived, but does not remember anything else about her past or what happened to her home.

Little does Mari know that Hagino's past is intricately connected with her own. Hagino is the captain of an Arume ship called Blue. The ship, which is a battleship, was involved in a fight with Mari's island, which led to the deaths of the inhabitants. In the fight, the ship was badly damaged and Hagino was forced to act like a normal human girl in order to gain more data on her enemies, the humans.

Hagino's plans for the coming war and her ideas about humans change as she comes to know Mari more. Gradually, the two girls learn more about each other and come to trust and rely on each other. Their feelings grow much stronger as well. Soon Hagino is left to question whether her species' actions are right, and whether or not she should do something to help the humans.

1 Season, 13 Episodes
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Blue Drop Full Episode Guide

  • The invasion begins and the human defense forces are no match for the new Arume weapon. Blue joins the fight and destroys several enemy ships.

  • Hagino tells Yuko about the coming Arume invasion and her hopes to protect the planet.

  • Azaneal reveals to Mari painful details about the accident five years prior and who was to blame.

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