I'm pretty sure that's Nayuki pretending to be her mom, in preparation for seducing Yuuichi.

Where is it from?

Yeah, thats Nayuki.

Note the voodoo doll with Aikko-esque braid on the board, lol.

I meant Akiko, not Aikko.

In an odd way... its sad. That the only way she can get Yuuichi is to impersonate her own mom.