A member of a provincial clan of vampires in a remote area of the demon realm, she and her kin are roused into action when Primtine's castle passes through and they are reminded that Fabio, an incubus which the clan despises as a race, is Primtine's military adviser. Chiikyu and her kin require blood to slake the thirst of their souls, but they will only accept virgin blood as that is the only one which suits their tastes. The provincial nature of Chiikyu and her kin means she is unaware that her usual ability of manipulating a victim whose blood she has consumed by mind control does not work against incubi and succubi who are too close in nature to them. When she consumes Fabio's blood, she is induced into a drunken state allowing Fabio to rape her and extract a promise of cooperation. After joining Primtine's army, Chiikyu is not permitted to drink Primtine's blood and is faced with considerable withdrawal symptoms from lack of feeding. She refuses Fabio's offer to drink his blood (since she doesn't want a repeat of her drunken state) but is eventually forced to have sex with Fabio to alleviate her blood withdrawal symptoms (lack of blood increases her libido to uncontrollable levels) In her ending, she returns to her village and brags about her achievements fighting in Primtine's army. She does reduce the prejudice of her kind against incubi and succubi thanks to her relationship with Fabio.