I like idol anime rhythm games so sonic will be one too. Sonic is a famous idol in Japan. Her songs tend to top the charts and she is loved by everyone in Japan. One day though, she unexpectedly to take an indefinite hiatus to concentrate in her school. She moved to the US and went to mobius high. She would never realize the crazy life she would have there... Sonic is a girl because it makes the plot easier. Shadow is the popular guy school stereotypes will be used lol