A lost little black cat walked into the big fat cat's nest.
With him, the lazy fat cat can never sleep again.
The big fat cat had no choice but to take the little black cat with him on the road to find his family.
The little black cat who learned to say "thank you" has become a little different. What is different about it?
Purpose: To teach children to be polite and civilized, and to be a good baby who doesn't run around.