For the first time in her confident, bold life, Mickey McDonald is nervous about starting school. Her best friend, Ok, has moved away; her father has probably left town for good; and she can't afford to go back-to-school shopping. But she's going to make the most of things because that's the kind of person Mickey is. Nothing's going to stand in her way or get her down.

Still, the first few days of school are rough, until she becomes friends with Sun Joo, who has just moved to town. Their connection is instant and strong. But things get complicated when Sydney, the popular (and mean) girl in Mickey's class, also takes a shine to Sun Joo. Suddenly Mickey is facing her first ever friend breakup, and it's getting harder and harder to keep her chin up. Luckily, Mickey's made of tough stuff.