当我用X光镜头拍摄慢速跑者时，显示需要升级X光。有人知道该在哪里升级吗？（便利店的升级物品已被清空。）
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Once you have unlocked the x-ray lens and have returned to the Konbini store, you get an introduction to the explosion lens events. These are parts of the city events, which you can encounter all across town. You need to finish the first explosion lens event to be able to buy an upgrade to the x-ray lens.