Tsukumo Kamiki

Izumo's younger sister. When Tamamo went berserk, she was captured by the Illuminati as a spare along with Izumo.

After being adopted through Maria's efforts, she was taken in as the adopted daughter of the president of Takara Computer Entertainment. She now goes by the name Takara Tsukiko and is cousins with Nemu. She was separated from Izumo at the age of three, and having not met her for five years since then, she no longer remembers having a sister.