Asuka and the 'M Squad' had cornered Abigail to the brink, but they ended up letting her escape due to the emergence of a new magical girl believed to be the mastermind. As Asuka wavers between her childhood dreams and reality, she finally resolves to join the 'M Squad'!! Meanwhile, Mia and Tamara, members of the "Legendary Five (Magical Five)", also land in Japan for their respective missions. The organization 'Babel Brigade', led by the mysterious magical girl, and the scattered "Legendary Five" begin to move on the stage of Japan――!!