The class bully loves to tease Katie Woo until she decides to ignore him.

This book follows a group of young characters from Niceville Elementary School who bully each other on Bus 21.

"Lili Macaroni loves every feature she has inherited from a family member, but when she starts kindergarten she is teased for those very traits. Burdened by unhappiness, she creates a polka-dotted butterfly and imagines it flying her sorrows away--and finds she has introduced a powerful tool for conversations about emotions, self-esteem, and resilience"--