A bespectacled girl who attends the same school as Mikado and Masaomi. She is rather quiet and timid, but seems very close towards Kida and Mikado. She is very busty and cute, which makes her somehow popular, even though she feels uneasy about it. Mikado seems to have a crush on her.
Her online chat screenname is “Saika”.
She is currently in possession of the demon sword Saika, which gives her control over whoever it cuts and people wielding its ‘daughter’ swords.
When she was younger, her father was extremely abusive towards her. Her mother, who was at the time possessed by Saika, killed him and then herself.