Secuela en formato serie de los eventos posteriores a la película "KanColle: The Movie", dentro de la serie "Kantai Collection: KanColle".

Story re-imagining Universal Entertainment's Hanabi (Fireworks), Versus, and Thunder V pachi-slo machines as girls working in a pachinko hall.

Kojou Akatsuki's days as an ordinary high school student in the Demon District of Itogami Island come to an abrupt end after a fateful encounter leaves him with the remarkable abilities of a vampire. It isn't long before he is thrust into the center of attention when it is discovered that he is the fourth primogenitor, an immensely powerful vampire whom most consider to be merely a legend. Fearing Kojou's destructive potential, the Lion King Organization sends in an apprentice sword-shaman, Yukina Himeragi, to monitor, and should he become a threat, kill the boy deemed the world's most powerful vampire. Forced together by circumstance, the two form an unlikely alliance as Kojou comes to terms with his abilities and they both struggle to protect the city from various emerging chaotic forces.

Girls who live in a provincial city perform a certain ritual. The girls are in the "Crystal Radio Club." It is an interest circle that Asuka Tsuchimiya, a girl known for her cheerfulness, started with friends in her high school. That ritual was considered just an urban legend. However, with several conditions coincidentally falling into place, it stops being fun and games...

Au XXe siècle, de nombreuses villes ont été détruites par la catastrophe Invertia qui a frappé la Terre, mais Mana, un élément inconnu découvert dans une météorite, a développé la science et la technologie humaines et a donné naissance à une nouvelle race de personnes dotées de pouvoirs uniques, appelée la « Génération Genestealer ». Le plus grand tournoi de combat du monde, le Seibu Festival, se déroule dans la ville de Rokka, connue sous le nom d'Asterisk, où six écoles s'affrontent chaque année pour la suprématie. Amagiri Ayato de l'Académie Seidokan, qui a participé au tournoi en équipe "Fenix Festival", vise à conquérir le tournoi avec la "Gruen Rose Witch" Yuris.