Quiet Upperclassman

Quiet Upperclassman is a very hardworking student who is the 6th follower of Guitar Girl. As she minds a lot on school, she doesn't message Guitar Girl often and the story with Guitar Girl can be short or even rare

Appearance
Yu has purple eyes and long black hair. She can often be seen in a school uniform

Trivia

 * She doesn't send messages to Guitar Girl often.