Shin chan Me and the Professor on Summer Vacation The Endless Seven-Day Journey

Hiroshi is required to go to Kyushu for business. So the Nohara whole family took the decision to stay with Misae, Kumamoto, a acquaintance from their childhood.
They arrive at Kumamoto Station on their way to Assou and meet one of the strangers who offer them a camera with a strange name with the promise that they’ll act as his witnesses…
Shinnosuke can take in the mountains of Assou and the fields in the summer months while he has his camera by his side. The Assou landscape is even crawling with animals that he could otherwise never see in Kasukabe. There are also townspeople who will help him along with the possibility of making new friends.
But, don’t they look similar to his kids in the back home?

A cool, summer evening Shinnosuke witnesses a giant beast silhouetted against the bright light of the full moon. In front of the beast is a strange man with big smile.
The same man who gave him the camera when he was at the station…
And he calls himself the Professor Akuno. Assou witnesses more odd events in the aftermath from this incident.