For as long as she can remember, Mai has spent every summer in Mystic, Connecticut, visiting family friends. And hanging out with her best friend since birth, Zach Koyama, was always the best part. Then two summers ago, everything changed. Zach humiliated Mai, proving he wasn’t a friend at all. So when Zach’s family moved to Japan, Mai felt relieved. No more summers together. No more heartache.

But this year, the Koyamas have returned and the family vacation is back on. And if Mai has to spend the summer around Zach, the least she can do is wipe away the memory of his betrayal…by coming up with the perfect plan for revenge!