Yumiko is Tōka's mother and the daughter of Kiyoharu. She is a novelist and her writings usually have a supernatural effect over the land. She has a very childish personality which causes problems for her maid, Nene. Her attitude is very erotic as she often walks around nude and sometimes molests Tōka or Momoka. She is the current host for the goddess Juna. Due to mental scars caused by her traumatic childhood, Yumiko is unable to live normally without the presence of Juna.
