Zip

Zip has short hair, parted down the middle into black and white. The equation "2 + 2 = 8" is written in blue on her head. Various drawings are on the upper part of her body: a blue smiling face, a blue house, and a red tree.

Her hands and feet are black, with four sharp claws instead of fingers. Zip's tail is long and spiky, similar to that of a dinosaur or alligator. She wears black knee-high boots with heels. Zip is one of the school's "bullies," along with Oliver and Edward. Together with them, she bullies other students, especially Claire.

She is playful, but also deceptive. Oliver, Edward, and Zip are the school's "bullies," constantly mocking or teasing other students, especially Claire. Zip is one of Miss Circle's favorite students. Claire is a victim of Zip and her friends' bullying. She has a younger brother, Chip, with whom she played pirates. [3]
Zip loves to draw.
Most likely, Zip made the blue book that says "learning is fun".