aoi (itsuki)

碧(戌憑)

碧 (あおい) ~雪山の化け上手 (A Proficient Shapeshifter in a Snowy Mountain)~

An original Touhou character by Kitsunetsuki Itsuki.

She has blue hair with a braid, blue eyes, red facial marks, a white fox tail and fox ears.

In July, 2009, Senpii created a faux Touhou-style music for a fictional Stage 1~2 Boss: 悪戯白狐罷り通る (Itazura Shiro-Gitsune Makari Tooru, "A Mischievous White Fox is Going Her Own Way").

Some artists made original characters inspired by it:

All of them are (partially-)white kitsune girls. They are sometimes regarded as siblings. They can be considered either as Touhou originals or as pure original characters, depending on the situation.