Kobushi Kiku is an original character created by Rimiko. It is viewed as one of the many concept appearances for the VOCALOID2 product VY1, though it should be noted that the current VY series have no official avatars.
For her redesign, she keeps the halterneck and sleeves, but she gains a red hakama short skirt and trades her geta for high heels. Her hair becomes fully pink, and she gains white, butterfly-like ribbons to tie it.