Haruka Minazuki and Aoi Kannazuki are freshman high school students and best friends. During the day they help with school activities but at night they thwart enemies like Black Auction and other villains as Red Angel and Blue Angel, the Twin Angel team.

[Source: MyAnimeList]

Haruka Minazuki and Aoi Kannazuki are two students at St. Cherine academy. Haruka is always filled with bubbly energy while Aoi is more mature and a top student in all her classes - but despite their differences the two are the best of friends. The two girls look like any other girls, attending the academy, but the truth is they are hiding a little secret, that they can't let anybody know about...

During the day they really are just students at St. Cherine academy, but they can also become the Twin Angel duo, and fight against the evils of the town!

The lovely Angels are back, and it's time for them to get ready for some action!

[Source: NicoNico]

OVA included as a limited edition package on Blu-ray.

[Source: MyAnimeList News]

Amatsuki Meguru is a girl who innocently aspires to be a hero of justice and the cool Kisaragi Sumire who grew up in the strict Kisaragi household... The two girls who are in their 3rd year of middle school end up getting orders from a mysterious hedgehog named Miruku-chan and turn into Twin Angels in order to fight evil! Meguru is always cheerful but sometimes a bit too forceful. Meanwhile, Sumire isn’t accustomed with being around others. Despite their differences, as they work together, they start opening up to each other.

[Source: Crunchyroll]