The story centers on the animal character Nalong, a flying squirrel.
[1] Somewhere in this world, there is a town named Lala in a forest called Lulu.
Nalong lives with his father and 10 brothers, and attends elementary school.
His friends are an otter named Ukkya, an ostrich named Tajori, and the Mandu brothers, who were accidentally made by the famous inventor Professor Penguil.
The central characters of Nalong's Family are: Nalong, Nalong's father (Dalbong), 10 Brothers, Blue Eagle, Panji, Panji's father, Hobi, Tori, Riri, Ukkya, Ukkya's mother, Ukkya's father, Sungsung, Sungsung's mother, Tajori, Tajori's mother, Tajori's father, Ujuin, Penguil, and the Dumpling brothers.