Tottoko Hamtarou Movie 4: Hamtarou to Fushigi no Oni no Emon Tou

Hamtaro and his friends want to perform a tale about an ogre-fighting hero, but strange smoke carries them into a tower of picture books. Its writer, Ayayamu, is struggling with a new story and puts the visitors to work inside it.

The Ham-Hams take on the roles, then promptly let their own enthusiasm carry them away from the script. Their adventure leads toward the ogre king and a lesson for their lonely author about the value of friendship.