This is a beautifully and humorously written story about how an adopted boy who is dealing with his parent's divorce, discovers that he has a long-lost twin sister. Tao didn't think anything about that phone call. It was just a wrong number. A little thing. But he was so wrong! Tao has a sister. She is Chinese like him, adopted like him, and her name is Mimi. Ever since Jo took his dad away, Tao feels like he's in the middle of a tug-of-war between his parents. But he can't help hoping that they will get back together ... someday.