Hiroshi is going on a business trip to Kyushu. Therefore, the entire Nohara family decided to stay with Misae's childhood friend in Assou, Kumamoto.

But when they arrive at Kumamoto Station, on their way to Assou, they meet a very strange man who offers them an even stranger chamber, on the condition that they be witnesses to him...
With his new camera in hand, Shinnosuke will be able to enjoy his summer vacation in the beautiful fields and mountains of Assou. This landscape is full of creatures that do not exist in Kasukabe. And he will also be able to help some villagers and make new friends.
That said... aren't these kids too similar to the ones from his hometown?

On a cool summer night, Shinnosuke sees the outline of a giant creature against the light of the full moon. Next to the creature is a strange man with a bizarre smile.
He's the same strange man who gave you the camera at the station...
He says his name is "Professor Akuno". After this meeting, more and more strange things happen in Assou...

Highlights

• Morning workout in Assou - There's no Japanese summer vacation without a morning workout! All the villagers get together in the morning to do gymnastics! Enjoy the show!
• Fun meals - The Nohara and Hinoyama families have their meals together. When they sit down, say thanks for the meal and start eating! The dishes are amazing, but that's no surprise when you eat in a real restaurant!
• Explore at will - Run, play and explore everywhere. As it is surrounded by nature, Assou also hides insects and rare fish! Catch and fish them, help the inhabitants and enjoy your holidays to the fullest!
• Night bath - After a long day of fun and exploration, there's nothing better than taking a shower with dad! You'll be able to see all the stars in the sky in this traditional bathtub. Regain strength and get ready for the next day!
• Graphic diary - Record the funniest experiences in the graphic diary. It's the ideal way to keep all those summer memories. Whether it's all the events of the day, new things you've discovered or types of fish and bugs you've caught!
• Become a News Reporter-When Shinnosuke visits Cap at the news agency, he starts working as a journalist on children's news! Whatever he discovers will be reported in the newspaper and on the village bulletin boards! With the newspaper bringing more and more subscribers, the agency will become better known! Discover the best news!
• Catch bugsm - Assou's nature is full of bugs. Some are very rare, which you certainly wouldn't find in Kasukabe! Get the bug net ready, aim and SPIN! All the bugs you catch will be stored in the Bug Encyclopedia!
• Fishing - Assou's rivers and lakes are full of fish so you can fish whenever you want! Prepare the rod, pull it at the right moment and catch rare fish! All the fish you catch will be saved in the Fish Encyclopedia!
• Plant vegetables - You can grow healthy vegetables at Kurokami Farm! And if you take the vegetables you pick to Hinoyama Restaurant or other shops in the village, maybe you'll earn some money ♪
• Help the stores - The Hinoyama Restaurant, the local restaurant specializing in curry dishes, and the supermarket are always on the lookout for fresh ingredients. Earn money by taking the ingredients they have listed on the bulletin board!
• Dinosaur Showdown - Make friends in Assou and challenge them in the Dinosaur Showdown! In this place, strong dinosaurs and familiar characters come together to fight! And you can collect dinosaur cards if you buy Chocobi from the Kirishima Shop!
• Become a DJ - If you make friends with the bar owner Jiro Bailarino, you can be a DJ! The songs you create will be part of the game's soundtrack! Mix them however you like and listen to your songs in the store!