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

Hiroshi must go on a business trip to Kyushu, so now everyone in the Nohara family is deciding to spend the night with a childhood close friend of Misae’s Assou, Kumamoto.
The group arrives at Kumamoto Station, on their journey towards Assou. The stranger gives them a camera in a strange condition. He asks for witnesses.
Shinnosuke can enjoy the Assou Mountains and fields of the summer season by putting his camera on his feet. The scene is filled with creatures that he would have never seen in Kasukabe. Also, there are locals to help and new friends to meet.
However, do they not appear much like his children in the their home?

One cool summer night, Shinnosuke sees a massive monster silhouetted against the glowing light of a full moon. Next to the creature is a stranger with big smile.
This is the man who gave him his camera in the police station…
He also calls himself Professor Akuno. Assou has been witness to many bizarre events as a result of this confrontation.