I'm pretty certain this is a seiyuu joke. Balalaika's seiyuu Koyama Mami voices Norimaki Arale in Dr. Slump. I figured it was supposed to be her, and looking at the Wikipedia, the "Ncha!" thing in the bottom right corner seems to be related to her as well.
EB said: I'm pretty certain this is a seiyuu joke. Balalaika's seiyuu Koyama Mami voices Norimaki Arale in Dr. Slump. I figured it was supposed to be her, and looking at the Wikipedia, the "Ncha!" thing in the bottom right corner seems to be related to her as well.