Penta and Koharu: Puzzling Spot-The-Difference

by Penguin Airplane Factory

ISBN978-4-7631-3859-0 C8045

95 pages / November 2020 / 1,100 yen (w/o tax)

Difficult spot-the-difference activities from popular Twitter personalities, Penta and Koharu!


The best – if by “best” you mean “most troublesome” – spot-the-difference activities ever!

Over 100,000 followers on Twitter! Solve puzzling spot-the-difference activities with popular characters, Penta and Koharu.


There are a whopping 1,211 differences to spot! Who could find that many?!

These are fun and challenging for all ages! Improve your observation and concentration skills!



Koharu is reading a picture book called The King of Mirrors. The King of Mirrors is a mischievous king who hides countless mistakes within a mirror’s reflection. Once Penta begins to help, the King himself appears! They are then taken into the mysterious world of the book. There is only one way out for them! They have to spot all the differences!


Penguin Airplane Factory

Under the motto, “turning life’s unpleasant moments into happy ones,” Penguin Airplane Factory produces content related to daily living. It also creates books and merchandise related to the popular Emperor penguin with bedhead, Penta, and the cute ribbon-clad Koharu. Penta and Koharu’s Instagram page, or “Penstagram,” gives fans a glimpse into their daily lives. Penta is the official mascot for March of the Penguins 2: The Call, the sequel to the 2005 Academy Award-winning documentary, March of the Penguins.