If there’s one thing Lily Hong can’t stand, it’s being second best. That’s why she and Max Zhang have been bitter rivals ever since he swooped into town as the new kid with the cool clothes and his fancy downtown Chinese school and showed her up in the fifth-grade reading challenge. She had wanted to be the one to win the pizza party for their class. Okay, so that was two years ago . . . her best friends Kelli and Lauren didn’t totally...