調月リオ ビッグ•シスター 츠카츠키리오 リオ
Currently unplayable character from [[Blue Archive]]. President of Millennium's student council, [[Seminar (blue archive)|]]. Nicknamed "Big Sister", in reference to [[Big Brother (1984)]].

Her full name is Tsukatsuki Rio.

Carries around a [[tablet PC]].

Original artist: [[mx2j]]

h4. Official art

* !post #5913065: Profile
rio (blue archive)