Izu suddenly appears before Aruto in a corridor passageway of Satellite Zea, however, there seems to be something off about her... Furthermore, besides her new long-haired hairstyle, she keeps on suddenly appearing and then disappearing from view, and the way she speaks seems unintelligible! Izu, who claims she is suffering from a systems failure, has apparently lost all of her data on Zero-One! So in order to update Izu's data on Zero-One, he decides to go back and revisit all of their previous battles, however...