Himiko

Himiko adheres closely to Kaon and is one of Mika's many lovers, although the relationship is not romantic; rather, Himiko is Mika's subordinate in all things, with Mika using her as she sees fit. Himiko has even mentioned that her name was 'assigned' to her by Mika. She is based off of the character Himeko Kurusugawa from Kannazuki no Miko and has been said to be Himeko's reincarnation. She certainly seems to display Himeko's lack of self-confidence and strong emotional bond with Chikane's counterpart, Kaon, even protecting her and providing her with energy at a cost to her own well-being. (Wikipedia)