mikado_(senpii)
白柳木 美門
Original character by Senpii. Correct reading of her name is unknown (probably, "Shiroyanagi Mikado").
She is related to Fukunomiya Koko (kuromiya) and Aoi (itsuki). See also Aoi's_wiki.
See also
* Description on pixiv (deleted): pixiv #8823109