Welcome back, Chi! This time sweet home is off to Okinawa!

The energetic kitten Chi lives with her beloved owner Yohei and the Yamada family. This summer, Dad is called on an emergency business trip to Okinawa. Worried about who will take care of Chi, he plans on going alone. However, Yohei and Mom are set on going with him, and the whole family sets off for the tropical paradise.

What awaits them is the shining sun, the vast ocean and…?