|Ruu-kun, Popular at School|
|Season 1, Episode 7|
Ruu-kun introduced as Miyu's younger brother
As Miyu packs her things for cooking class, Ruu jumps in her bag. When it was cooking class, she noticed that Ruu was inside. Miyu tries to hide him, but can't. Everyone adores him. Aya finds an idea for drama competition where Kanata, Miyu and Ruu are the main characters.