Identical sister of Manatsu and Masumi. She is introduced as Izumiko's cheerful and kind roommate. However it is revealed that she is a monk and is currently involved in a secret schoolwide rivalry between her and Takayanagi. Although she can seem kind, she at times can be just as calculating as Takayanagi. After witnessing Izumiko's ability to identify Takayanagi's spirit agents she realizes that Izumiko and Miyuki might be more powerful than she thought and decides to try to recruit Izumiko and attacks Miyuki to reveal his true strength.