Arthur's Invisible Magical Suit

Arthur has been anxiously waiting for his first day of school. When the day finally arrives his Mom tells him to always remember the number one rule. He hurries to school looking forward to making new friends. However when he arrives in his classroom, his classmates bully him. Feeling really horrible Arthur returns home.

What will happen to Arthur if he goes back to school? Will the number one rule help him to make new friends? Will Arthur still be happy to be at school, or will he decide that school is not for him?