Keita and Seven captured by Magira and Zero One. After separating the two, Magira offers a game in Keita. Based on the three keywords, it was a question of whether we could reach Seven in less time. Keita desperately searches for Seven based on the words "Takimoto," "Seven," and "Keita." Meanwhile, Magira begins a large-scale hack on the Under Anchor system using Seven. Eventually, the server at the Anchor headquarters was completely suppressed, and the magician expanded to the entire area of Tokyo via each company. The turmoil caused by the system down occurs everywhere in the city, and the situation spreads to the whole world at a rapid speed. Faced with an unprecedented anomaly, Keita and Under Anchor make a tough decision ...
間明とゼロワンによって捕らえられたケイタとセブン。ふたりを隔離した間明は、ケイタにあるゲームを持ちかける。3つのキーワードをもとに、セブンの元まで時間以内にたどり着くことができるか、というものだった。「滝本」「セブン」「ケイタ」という言葉をもとに、必死でセブンを探すケイタ。一方、間明はセブンを使ってアンダーアンカーのシステムに大規模なハッキングを仕掛け始める。やがてアンカー本社のサーバーを完全に制圧し、その魔手は各企業を経由し都内全域にまで拡大。街中のいたるところでシステムダウンによる大混乱が巻き起こり、その事態は急速なスピードで全世界へと広がっていく。前代未聞の異常事態に直面し、ケイタとアンダーアンカーの面々はある苦渋の決断を下すが…。
