Human civilization no longer revolves around fire, but is instead now driven by fear of it. Repeated wars have changed human biology, and people now spontaneously combust when they get close to natural flame. However, a new source of energy prevents society from complete collapse: a stone-shaped material used to produce light and steam lies within the bodies of monsters that infest numerous forests. Those tasked with collecting this precious resource are called fire hunters. Touko, a young village girl, is saved from a forest monster by a fire hunter who perishes during his heroic action. After the hunter's dog, Kanata, heals from his own injury, the girl's family sends her to the capital in order to return Kanata and the hunter's fire sickle to his relatives. Elsewhere, the fire hunter's son, Koushi, and his sister are adopted by a wealthy family. Koushi learns some troubling facts related to the country's ruling royal family. He conducts secret research on a special fire stone found by his late father, kickstarting a race against time between the country's leaders and those trying to save mankind from its ultimate demise.

When Mizuki Hijiri transferred to a new school, all she wanted was to live a normal school life, but that did not prove to be the case when she met the infamous Hero Club. All of its members are boys suffering from various types of chuunibyou—Yamato Noda is a righteous hero, using his athletic abilities to perform noble deeds and protect others; Kazuhiro Nakamura claims to be the reincarnation of "Touga Ryushouin," the result of the forbidden union between a demon and an angel; Tomoki Takashima is a pretty-boy otaku whose one true love is the 2D anime girl Sora; and Rei Tsukumo plays the role of a schemer, covertly pulling the strings. Dragged along as the newest member of the Hero Club, tepid Hijiri can't obtain the normalcy that she desires. But even so, despite their various quirks, their bonds of friendship are real; Hijiri's life can only get more exciting when she joins in on their delusions of grandeur!

To be around cute girls wearing cute clothing is all Eruna Ichinomiya desires. Since Mikagura High School happens to have the cutest uniforms around, she decides to enroll in this prestigious high school known for its cultural clubs. However, she does not realize that joining a club is mandatory, and representatives from each club must battle for a ranking. Based on these rankings, club members are awarded housing and food. Chasing after Seisa Mikagura, the most beautiful girl in school, Eruna joins the going-home club but finds herself thrust into fighting the next club battle. With the other club representatives wielding unique powers, the competition is sure to be fierce! Based on the popular song series, Mikagura Gakuen Kumikyoku follows Eruna as she explores the various clubs in school and assists the members with their troubled lives, all of whom are also vying for the top spot in school. [Written by MAL Rewrite]

In the scientifically advanced Academy City, a miracle is about to occur: the completion of the world's first space elevator, "Endymion." Meanwhile, a certain high school student, Touma Kamijou, and his companion Index are going about their daily lives when they encounter and befriend Arisa Meigo, a cheerful and ambitious singer. When strange occurrences begin taking place throughout the city, they lead to the discovery of an intricate plot surrounding Arisa and Endymion. Things only get more complicated when the Stiyl Magnus appears, signifying that the magical world is somehow involved too...

[Written by MAL Rewrite]