Yui Rio is a female student at Akademi Highschool. Yui le Rio est une étudiante à Akademi Highschool
Yui Rio wears the default female school uniform, unless customized by the player.
Yui has scarlet hair kept up in a short ponytail on the right with her bangs swept to her left. Her eyes are burgundy.
Among the personas currently in the game, Yui is Evil. If she sees a corpse or witnesses a murder, she will compliment Yandere-chan on her crime and then run off because she does not want to risk becoming your accomplice. If the player has their phone aimed at her, she will become annoyed and cover her face unless Yandere-chan is in the Photography Club. She cannot participate in physical fights against murderers.