The greedy fox’s friend tells him, "You can only stay in the hollow tree until your stomach becomes small." When the fox's friend wants to leave, it sees a big chicken leg. Suddenly, he thinks, "When I put it in front of the tree, my friend will see it, then he will quickly get out of the hole. Why am I so clever?" He follows the plan. That day, the fox runs out of the tree! But, he dies because it is too hungry.