Invertia… an unprecedented disaster that struck the world during the 20th
century.
Within the meteor, an unknown element called mana was discovered, which gave
rise to a new species of human born with unique skills — Genestella.
At the academy city above the water, Rikka, also commonly known as Asterisk,
the world's greatest comprehensive battle spectacle, the
Festas, is held.
In order to fulfill his own wish, scholarship student Ayato Amagiri swears he too will fight in this city!