Himiko (ひみこ?) is close to Kaon and subordinate to Mika Ayanokōji, saying that the latter "assigned" her name. She adheres closely to Kaon and she 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 enjoys creating pictures, her preferred medium being a sketchbook, rather than a photo camera. Her only subject for her drawings and paintings seems to be Kaon, who has expressed she enjoys Himiko's drawings very much. She later lives together with Kaon near a beach.
In special two of the anime, Kaon goes to visit Himiko and Himiko draws her nude with a blanket. They talk about if they can visit more, but Kaon has to be repaired, a process that could result in memory loss or death; Himiko cries tenderly and Kaon puts her arms around her and says "Don't worry, because I'll be in here." (Meaning in Himiko's heart). Himiko tries to kiss her, but Kaon said "Save that until I come back." Kaon leaves, but Himiko grabs her hand and kisses her anyway. In the ending scenes, she and Himiko live together like their previous reincarnation and in the sixth special, they're shown in a jewelry store, buying two matching pendants.
- Himiko is based on the character Himeko Kurusugawa from Kannazuki no Miko and it has been said to be Himeko's reincarnation as she initially seems to display Himeko's lack of self-confidence and strong emotional bond with Kaon (Chikane Himemiya's counterpart), even protecting her and providing her with energy at a cost to her own well-being. Just like Himeko, she eventually displays great determination and courage, motivated by her desire to save Kaon from Kazuya.
- Reminiscent of Himeko Kurusugawa in her lack of self-confidence and emotional bond with Kaon, Himiko develops determination and courage. Although she enjoys creating pictures, the only subject for her drawings and paintings seems to be Kaon.
- In the sixth special, the pendants that Himiko and Kaon purchase do not only link up to form a heart, but also bear pink seashells; the exact same ones worn on the necklaces Himeko and Chikane possessed in Kannazuki no Miko.