For those who don't follow the comic, I should perhaps explain that the red-haired girls aren't twins in the mundane sense, but very-slightly-diverged alternates of the same girl, which is why in my original post I said "three four" characters ... and why they don't see two sets of red-haired Norns.
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Considering that one dictionary definition of "carry on" is to "behave or speak in a foolish, excited, or improper manner," the designers of that famous poster, "Keep Calm and Carry On," need to make up their flippin' minds!
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Considering that one dictionary definition of "carry on" is to "behave or speak in a foolish, excited, or improper manner," the designers of that famous poster, "Keep Calm and Carry On," need to make up their flippin' minds!