突如【この街】が何者かに奪われてしまった・・・。「零夜」と協力して現実世界のポータルキーを集めてこの街を取り戻そう。ポータル制圧にはいくつもの謎に挑むことになる。ヒーロー達と協力してすべての謎を解き明かせ！

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Suddenly [this town] was robbed by someone ... Collaborate with "Zero Night" to collect real-world portal keys and regain this city. You will challenge a number of mysteries to control the portal. Work with the heroes to solve all the mysteries!

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