"Mio finally has her dream come true. Ms. Nakamura ends up in a nightmare situation after discovering the Shinonome Laboratory, the princess goes on a rampage to recover the wood cubes. Mai makes a new friend, and Mio makes a heartbreaking discovery that propels her to learn something important about life."-- Provided by publisher.

Originally published in Japan in 2011 by Kadokawa Corporation, Tokyo. Reads from right to left. The book is published "manga-style", in authentic Japanese right-to-left format.