Unknown school [super slow update]

There was a three best friends, they always got bullied when there were young. Now they are adult (teenager), the new high school school open, the tuition are low and the school is very big. And its also have many course even in high school year. They are so excited and they immediately go to school....they enter to school, there many student and many teachers. And they also so who bullied them when they were younger.

Main character
KI - CHEF course. She is clay(bubblegum princess) . Because her mother is a clay and her father is human.
YEINA - WIZARD Course. She is professional magician, But in spell.
CJ - DETECTIVE course. She is the guardian of sea with her mother.