Reiko unleases Arachne revealing herself to be Lady Autumn from Phantom Task. After detaining Ichika, Reiko reveals that it was Phantom Task who captured Ichika during the Second Mondo Grosso while she forcibly attempts to take Byakushiki. Upon arrival, Tatenashi is seemingly killed while Cecilia and Rin engage BT Second, Silent Zephyrus. Revealing the speared Tatenashi to be a water-based copy, Tatenashi along with her IS, Mysterious Lady, engages Lady Autumn. As Ichika pursues Lady Autumn, he is intercepted by Silent Zephyrus who successfully deters him, Houki, Charlotte, and Laura allowing Lady Autumn and herself to escape. Maya briefs Chifuyu on Phantom Task revealing that Silent Zephyrus was the second Blue Tears stolen from England while Chifuyu reveals that Tatenashi's true objective was to train and guard Ichika. Unknown where, Autumn berates a woman resembling Chifuyu for her interference while Squall intervenes simply addressing the other as "M". As M awaits her revenge while staring at a locket containing the photo of Chifuyu, Tatenashi reveals to Ichika her purpose of protection. Tatenashi also reveals what Ichika's crown really meant as the stays with him.
謎のIS搭乗者「巻紙礼子」に襲われた一夏。「白式」を装着し応戦する一夏だったが、敵の目的はその「白式」そのもので……！？
果たして、巻紙の正体とは！？ そして、ミステリアスな生徒会長――更識楯無の秘密がついに明かされる！
백식을 노리고 이치카를 습격해온 팬텀 태스크의 오텀.
그녀의 IS 아라크네의 강력함 앞에 이치카는 큰 위기에 빠진다.
한편 IS스쿨 밖에서도 또다른 IS가 습격해 왔는데...
