Team taekwondo. #2, Baeoh and the bully / Master Taekwon Lee & Jeffrey Nodelman ; illustrated by Ethen Beavers.

Enhanced descriptions from Syndetics:

Following the incredible momentum of the first book in the series, Ara's Rocky Road to White Belt, book two brings the team back for another exciting and inspirational adventure. With Buddy Day right around the corner, the Team Taekwondo dojo is buzzing with excitement. There's one student, however, who's not so excited. Bringing a buddy to class would normally be easy for the confident and cool Baeoh. But with new bullies in his life who won't leave him alone, Baeoh doesn't feel much like a buddy. Worse yet, he may be turning into a bully himself. In order to overcome his bullies, Baeoh must gather support from his friends and learn about the important taekwondo principle of respect. The Team Taekwondo series combines the appeal of graphic novels and martial arts to deliver action-filled, character-building stories. Each book also includes one free lesson at any participating licensed ATA Martial Arts location.