“Wanna know a secret?”. Lan, the new, quiet girl in class gives Mie and Hana an origami rabbit. In the rabbit’s folds hides a treasure map. Answering riddles one by one leads Mie and Hana to an adventure through Naha, a city shared by the old and the new, children and grown-ups. Between Lan’s lies and truths, the two find a great treasure hidden in the City.