User blog comment:NinjaClockworker/Kayo Sudou...What Happened to You?/@comment-5103797-20121126051647

I'm assuming that Elluka literally swaps bodies with other women. Lukana received Elluka's old body when Elluka took hers. Later, Kayo received Lukana's body (which is why her hair was pink in the PV of Tailorshop) when Elluka took hers, etc.

Just a thought, but in Tailorshop, Kayo references that her scissors originally belonged to her mother. Is it possible that Kayo's "mother" was Elluka? They don't have to be biologically related, but maybe Elluka gave Kayo the scissors after they swapped bodies? Just a weird theory. ..