Nah, she's shown up two other times, but this is her first 'actual' appearance. Last two times were on a 'Joker' card and as an example of UFO sightings at Christmas.
Don't call me "big bro"!Nue-chaaan♡We'll wash each other! I just know it'll be fun!♪This looks a lot like Mamizou!Big brother, what's the snack of the day?Grrrr! Enough! When are you guys going home, huh?!Give it up already, Rinnosuke.Oh! And it's tsubaki-mochi for me, please.♪Flan wants some Mont Blanc today.♪Hear me? You two are going home tomorrow! No ifs, ands, or buts!!Okay.♪Don't be so naggy, big bro!♪Big brother, let's take a bath together today.♪The number increased?!