Zip - She is mischievous, cheerful and also loves to make fun of and bully some students. Oliver - He is a tease, a joker, and also mischievous and cunning. How his like to mock and bully other losers and students by making pranks on them. Oliver and Zip are best friends, they both love to have fun and laugh at others, giving them all sorts of unexpected surprises that hardly anyone would like.