Onmyoudou magic was once a powerful technique used by the Japanese during the second World War in order for them to gain the upper hand and establish their nation as a formidable force. But Japan was quickly defeated after the revered onmyouji Yakou Tsuchimikado caused the "Great Spiritual Disaster," an event which plagues Tokyo to this very day. As a result of this mishap, the Onmyou Agency was established in order to exorcise further spiritual disasters and combat the demons that would make their way into the world. Now, Onmyoudou has become far more modern, simplified, and refined for use in a wide variety of applications such as medicine and technology. However, not everyone is able to utilize the magic, as is the case with Harutora, a member of the Tsuchimikado's branch family. Despite an old promise to protect Natsume, the heir of the Tsuchimikado's main family and Yakou's supposed reincarnation, as her familiar, Harutora has no talent and chooses to live a normal life instead. But when a prominent member of the Onmyou Agency attempts to recreate the same experiment which led to Japan's downfall, he decides to make good on his word and fight by Natsume's side. [Written by MAL Rewrite]

One day, the bright red sun stopped shining, causing the "Breakdown Phenomenon"—the destruction of Arata Kasuga's town and the disappearance of the people inhabiting it. All, however, is not yet lost; by utilizing the magical grimoire given to him by his childhood friend and cousin Hijiri Kasuga, Arata's world gets artificially reconstructed. In order to investigate the phenomenon, Lilith Asami appears before Arata, whose artificial world suddenly disintegrates. He is given two choices: hand over the book, or die. However, Arata chooses the third option—enrolling in the top-secret magic school Royal Biblia Academy, where six other magical users await him. Together with Lilith, these six form the Trinity Seven, the elite of the school who each bolster their own power and skill. With the ambition to save Hijiri and the help of his newfound friends, Arata stops at nothing to prevent the destruction of his beloved hometown and to bring his best friend back. [Written by MAL Rewrite]

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)

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)