Shijima Kurookano

Shijima Kurookano, also known as Shiratama, is a girl who has survived experiments performed by the holder of Shinra Banshou, a medical practitioner, during the Edo period, just like Kouichi Aizawa. The holder used the Shinra Banshou to give a human heart to a cat, who became Shijima. Because of these experiments, it is implied she is at least a century and a half old. She involves herself in various situations only to observe humans. For observation purposes, she became a ninja of Kōga Village and a student of Alya Academy, the school Kōga Village takes the form of in the front world. When th...