Yamase Serina

 is a trainee idol and member of Pastel*Palettes' junior/sister unit, ViVidCanvas. She is slightly airheaded and initially called herself the Angel Idol Seririn (エンジェル系アイドルセリリン), before changing her title to Fairy Idol Seririn (フェアリー系アイドルセリリン) after realizing "she is more like a fairy", before finally settling on "Dream Idol Seririn."