Following a catastrophic meteor impact that altered humanity's future, the Rikka system emerged, housing six academies brimming with gifted individuals. Ayato Amagiri enrolls in the Asterisk, aspiring to partake in the prestigious Festa tournament. Yet, his ambitions clash with Julis-Alexa von Riessfeld, a formidable adversary. As Ayato showcases his swordsmanship, a fragile alliance forms between them against formidable foes. Will their unity endure to triumph over the tournament?