まったく予想する気のない3人目の友奈ちゃん予想図

名称は3人目だから友奈C…
ゆなしーとかゆなっしー、ゆっしー辺りだね(適当)

A prediction of a third Yuuna-chan I didn't expect.

Her name is Yuuna C because she is the third Yuuna...
Something like Yunashii or Yunasshii, Yusshii as well (joking).