Oshima Rio

 (大島理緒) is a former member of Ange☆Reve. She graduated from the group due to family problems.

Singles

 * Stare

Trivia

 * When she joined the group, she immediately became the oldest member, until Mizuno Yua joined on December 6, 2016.
 * She is very close to Matsuda Ayuna, Watanabe Kurumi and Matsuwaki Akari, which is called AkaRio.
 * She and Matsuwaki are the only members of the group who had short hair.
 * Among the group members, she has the longest running Twitter account, and it is the same account she used back on her previous group.