Solne♀

Director of the Monogami Museum, museum where Monogami (objects that acquired sentience after a long time of use) who lost their masters stay until they can find a new one. She herself is a 100 years old monogami, and became director after the death of the previous one several decades before, who also was who made her. Believes that Yuuya is the reincarnation of him. Has the power of "Soujou" (thought transfer), which allows her to speak with other monogami or even objects that haven't yet become one.