|"It's time to start livening up Nagarekawa again!"|
|Voiced by||Maya Yoshioka|
|Debut Episode||Phantasmagoric Arc, Episode 3|
Yui Mikoze is a guest character that appears at episode 3 of the Phantasmagoric Arc along with her mascot suit, Uogokoro-kun. She appears, but turns out to be in a Wooser mascot suit while Wooser was inside of Uogokoro-kun.
Yui and her mascot suit are originally from the anime series "Locodol" or by its full title, "Futsuu no Joshikousei ga "Locodol" Yatte Mita". She is the mascot to the town of Naragekawa and the businesses contained.
- The real-life mascot, Uogokoro-kun alongside Wooser were contestants for the annual Yuru-Kyara Grand Prix in three games of Soccer, Karuta and Sumo Wrestling. There was a versus page on Wooser's site for feedback and bets on which mascot would win the rivalry.
- In the end, the winner is Uogokoro-kun.