Thanks to Sasaki and the others' successful stint playing family, Type Twelve is beginning to take a shine to humanity. But soon, she wants more—to attend the neighbor's new school! Hoping to appease the mechanical life form, Sasaki's boss has everyone infiltrate, but they're far from alone. Various other countries and organizations follow suit, and armed agents and psychics lurk around every corner, waiting for a chance to strike. Meanwhile, something fishy is going on with the magical girls... Can Sasaki and his allies keep the school from erupting into bloodshed?