How so? if its because shes short wouldnt you just be able to see her ears?
From how i see it, the joke is supposed to be how Wise doesn't have "the one" for him. (even tho its Zhu yuan:ReinSmile:)
Zhu Yuan, Miyabi or Caesar, although the debate would be Miyabi or Zhu Yuan. Caesar is interesting but something's missing, at least from my perspective