I wonder if they just leave it with CDL16-17 A and not a special theme for it. Like I would understand it because of not much time for preparing (+maybe no new ideas which are good) the concert because of the TA Tour etc.. Like, I would prefer it that way than having a theme but not enough time or not a good theme. Of course if she still can manage that it's great too! Actually, I think there's no Ayu tour/CDL with a theme which ended in a total mess btw..
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