It's been three years since the end of the Distonian War, where humanity fought against the Disas Beasts. War Hero Otori Asuka has quit her job as a magical girl and gone back to being a regular high school student.

Asuka transformed into a magical girl again and protected her friend from the terrorists. Now, she hears information about Kurumi, another member of the Magical Five. Kurumi continues to fight.

Asuka and the others go to the pool to welcome Kurumi, the new transfer student. Asuka is enjoying her peaceful days, and her time as a magical girl seems like it ended many years ago.

Nozomi is kidnapped and tortured by Abigail and her allies. Asuka is worried when she hears that Nozomi's been kidnapped, but neither Public Safety nor M Squad can intervene.

As Kurumi escapes with Nozomi, Asuka fights the two Russian mercenaries. M Squad arrives to join the fight, but they lack any magic of their own.

Asuka is sent to a Tanabata festival, where she meets a mysterious stranger who is far more deadly than she appears to be.