Rivaia-chan stands among the main demon children at the series' kindergarten. She belongs to the group "Sakyuba-chan to Sakebu Jigoku-tai," which performs the theme song, and her character design embodies the mythological themes of the setting through demonic traits.

A dedicated manga spin-off focusing on Rivaia-chan launched in Fujimi Shobo's Dragon Age magazine on January 9, 2013, likely delving deeper into her background, daily activities, or interactions.