Yeona is also known name as Yeona Machine. She often teaches how to use basic electrical appliances or tools to make music stand out beautifully. She is always the most confident and optimistic in the Circuit Gacha area. And she also has smart friends like her, Amily and Sakura. Amily is a gamer in the club, she is very good at making games and playing gamer games. Sakura is a very good music creator, She loves to make music and is always good for people to listen to the music she makes.