Follow the friendship between the Nobara family’s pet dog Shiro and a “small dinosaur”. Their connection helps the growth of Shinnosuke and the Kusakabe Defense Squad.

The Noharas get abducted by aliens who claim that Shin-chan’s baby sister is their princess! Will she stay on this planet or return to Kasukabe?

When the mysterious Shiriri turns his parents into children, Shin-chan must trek across Japan to help return them to adult form.

When the five visit a private academy Kazama is attacked. He is left with reduced intelligence and strange bite marks.