Shinohara Hiyo

Hiyo is a short-haired brunette girl with blue eyes. She likes dancing and moves around a lot during the storyline. She is Kazuki's kouhai. She is a very bright and energetic girl, and calls Kazuki "Oniichan" She has a super crush on Kazuki, and gets very "watchful" when any girls are around Kazuki. Her real identity is Prototype #1 of a Communication-purpose-oid created by professor Shinohara. While she hides this fact, the people around her have more or less sensed it but does not reveal it.