On the island where summer and autumn "clashed"—"Acorn Island,"
where are Pusyupusyu's fluffy cheeks enjoying their vacation!?
Excited for a long-awaited vacation, Pusyupusyu and Nyu.
When they arrive at the airport on "Acorn Island," a new friend who looks just like Nyu welcomes them with upbeat, lively music.
The name of this new friend is "Party"!
Caught up in the energetic rhythm, Pusyupusyu gets so carried away that one of their cheeks flies off somewhere.
Nyu stays close to the downhearted Pusyupusyu.
Together, they all hop into Party's special taxi and set off on an adventure to find the missing cheek.
This island, a paradise where summer and autumn blend together, is filled with unique residents.
There's Taiyo-san, Hairina, the fishy older brother Kawachan, and Shinada-san…
As they chase after the lost cheek, Pusyupusyu encounters many friends and music along the way.
In the end, will Pusyupusyu be able to recover their cheek!?
Search for the cheek! Let's dance!