The duck named Ya Ya is the pet of the human Ya Ya. It is plump and often rests on its owner's head. It has an aggressive personality, pecking people it dislikes. It bullies Director Pa's pet Ying Zai. It hides in the desk drawer during class to avoid detection. It is a constant companion to Ya Ya and adds comic relief. Its actions sometimes affect the plot, such as startling students. It is loyal to its owner and reacts strongly to perceived threats.
