From an interview...
KAMI: Yes, yes, right. ::laughs:: However, later, on the road, we got used to it Yu~ki-chan's part kept getting more and more interesting. In our Talk Corner, we used topics of the area where we were playing. Like stories for each region, so the audience and us could connect. One time, the audience didn't follow, so I give the microphone to Yu~ki-chan and ran off stage ::laughs:: He just stood there, shaking and stuttering! ::laughs::
Q: Poor Yu-ki! ::laughs::
KAMI: Yu~ki was whispering, "Kami, come back quickly...", shaking all the while ::laughs::