Adam Weishaupt, the first humanoid, who tried to use the power of the Gods to destroy the Gods themselves, was defeated by the Symphogears which were transmuted by the Lapis Philosophicus, the ideal power source that St. Germain and her allies sought.

The ancient conspiracy of the Bavarian Illuminati collapsed, and its survivors were hunted by the worlds' governments.

But...

It wasn’t just the Bavarian Illuminati that was pushed to the brink.

The former superpower of America was criticized for its reflection of reaction weapons towards Japan, and isolated from international society.

As the threat of a new war on a planetary scale began to rise, swift political resolution was required, but complex international politics prevented any decisive action from occurring.

Japan, the victim in the incident, made superficial attempts to repair its relationships with America, but no real progress was made, and the ultimate fate of the world remained unknown.

And there was tension to be found in another place as well.

Inside the gondola of a Ferris wheel that overlooked the city's most famous landmarks, a popular date spot, sat two students from Lydian Private Music Academy: Miku Kohinata and Hibiki Tachibana.

The taiyaki in their hands was filled with shiratama, and was incredibly delicious. The filling had just the right amount of sweetness, and was the perfect mixture of egg and sugar.

But still, there was a tension between them, a tension that arose from a question that Miku had casually asked Hibiki.

As Hibiki fumbled for an answer, what lay inside her heart?

All the stories that began in the past and were woven towards the present gather inside XV.

The battle for the relics remains in eternal midsummer.

The songs of the girls give off a shining light, as they sing on the stage of the bursting surface of a lake.

[Source: Crunchyroll]