Fifty years ago, mysterious creatures known as the "Huge" suddenly appeared all over the world, posing an existential threat to humanity. To defend against these menaces, soldiers in the form of teenage girls known as "Lilies" use the energy "Magie" within their bodies to power weapons called "Counter Huge ARMS" or "CHARMS." After being saved by a Lily two years ago while evacuating from a Huge attack, Riri Hitotsuyanagi vowed to become a Lily herself. She enrolls in the prestigious academy of Yurigaoka, a training ground for Lilies, and discovers that one of her classmates is Yuyu Shirai—the same Lily who rescued her. Much to her confusion, however, the person she thought to be cheerful turns out to be quite antisocial and prefers to fight alone. Even so, Riri still desires to get along with Yuyu and is willing to do anything she can to reach that goal. With Yuyu and the other Lilies by her side, Riri's journey on becoming one of them has just bloomed! [Written by MAL Rewrite]

An alien woman named Maya crash-lands on Earth. Her homeworld was destroyed by the Blasters, a cruel alien race who steals the natural resources from other planets. She falls in love with a scientist and gives birth to a human boy named Kentaro. When the Blasters invade the Earth, Kentaro must defeat them by fighting with Astroganger, a robot made from living metal. (Source: Wikipedia)

Natsume Tomoharu is a normal high-school student in every way with one exception: he's being followed by the ghost of his best friend, Misao. After moving into his brother's old house, Tomoharu expects to continue living his normal life but is one day left with a mysterious and locked briefcase without any instruction. At first he plans to leave it in storage; however, his house is soon invaded by multiple groups of people after the briefcase. Although still not knowing the purpose of the briefcase, Tomoharu and Misao attempt to escape with it. From there on, Tomoharu tries to learn the secrets behind the briefcase, the connections between it and Misao, and why it has the power to change the world. [Written by MAL Rewrite]

Following the first season, Tomoharu is now faced with a dilemma: if he doesn't form a contract with an "akuma," he risks losing his dear friend Takatsuki. However, doing so would compromise his own existence as it would result in him and his ghost friend Misao becoming an Asura Cryin'—mankind's biggest threat, according to their school's presidents. To make the decision even harder, Tomoharu and Misao have recovered some of their past memories—memories of a world that they didn't even know existed.