Suddenly, a virus email arrived on Keita's cell phone. It was her contemporaneous girl next to her who helped Keita panic. The virus makes a fuss, and Under Anchor headquarters also sets out to investigate. However, she breaks into the server but is forced into it. Keita infiltrates the building where the server itself is located, but she meets the girl she mentioned earlier ...
突然ケイタの携帯にウイルスメールが届いた。パニックになるケイタを助けたのは、隣りにいた同年代の女の子。そのウイルスは騒ぎになり、アンダーアンカー本部も調査に乗り出す。だが、サーバに侵入するも逆に追い込まれてしまう。ケイタはサーバ本体のあるビルに潜入するが、そこで先ほどの女の子に出会い…。