Magilumiere Magical Girls Inc.

At a conference among industry leaders in Kaii countermeasures, Shigemoto's "Alice System" is rejected due to lack of proven results. He takes on a massive yet dangerous new project for himself to prove his abilities while questioning the industry's power dynamics and expectations. Meanwhile, a certain individual approaches Koshigaya with a suspicious proposal, putting her father on shaky ground.

Kana and Koshigaya visit the RIMT to investigate and exterminate a new Kaii species. Guided by Vice Chief Akasaka, they face a bewildering and seemingly invincible Kaii specimen defying all common sense. Behind the scenes, ulterior motives surrounding magic power regulations cause tension as the Kaii unexpectedly mutates. With a strict time limit, Magilumiere's skills are put to the test.

Magical Girls from Magilumiere and AST simultaneously face a rampaging new Kaii species. Koshigaya extends an olive branch to Tsuchiba, resulting in a clash of opinions that only sparks tension between their companies. The unknown Kaii rapidly mutates under the influence of magic power, after which a certain individual takes control as operator for the do-or-die battle ahead.