Um, if I remember correctly...It becomes "Wi".
Without further context, my best guess is that this is Cirno's jumbled recollection of what Rinnosuke told her about a Wii.I think I heard about it when I was at the four-eyes's shop!No you didn't.I know other ways of playing!WiI know it doesn't really matter, but was Kourin baring his legs here?Yeah, he was completely naked below the waist.If I press this protrusion and shake it at people......Hey, really?Hey, come on!That's right!I fixed it~Hmmmmmmm
(falsetto)Really?"Wi"?