朝倉 涼子

Age: 3-4/16-17 (Mental Age)
Occupation: Nagato Yuki's Backup Unit

Prior to attending North High, Ryouko (supposedly) attended a junior high school in a suburb far from North High, but had purchased a condo unit (unit 505) with a lump sum at a condominium near North High. She gave the building manager candy when she first appeared.