It's Yui, but the question remains. Will it be the rest of twinkle wish, or will her Caon friends also be included?

Aaah. My backup guess was correct. At least I had the mental image right. But yeah, since we started with Yui, Makoto is just as likely as anyone else.

Kinsei said:

Makoto is just as likely as anyone else.

We haven't really had a proper Makochii in either this series or Puchicolle.