After a bold breakout from the Memory Museum, Sayaka Miki arrives back in Mitakihara City bearing unsettling information. Disturbed by what she has discovered, Sayaka discloses to Madoka Kaname and Homura Akemi the location of Mami Tomoe—and, more crucially, the unsettling reality that explains why magical girls exist. Though aware of the harsh destiny looming over them, the trio swiftly decides to unite and rescue Mami once more.
In Kamihama City, Yachiyo Nanami pursues scattered "rumors" while searching for Hotel Fendt Hope, the nerve center of the Wings of Magius. The magical‑girl faction supplies Yachiyo with the sole clue to locate Iroha Tamaki, whose vanishing remains shrouded in mystery. Determined to bring Team Mikazuki Villa together, Yachiyo vows to annihilate the Wings of Magius and halt their sinister schemes.
Against this backdrop, a catastrophic menace rises, threatening to plunge the entire world into peril.
