Duke Bururu is giving a away a chocolate castle! If you find a winning piece inside a Bururu Chocolate Bar, the castle will be yours! But the Duke is not going to let the castle be won by anyone. He imprinted the winning piece in the white chocolate layer of his chocolate bar. And the white chocolate is in the middle of the bar! Surely no one will win. Except that Zorori did win, due to his unique way of eating, or rather, licking chocolate. Now Duke Bururu will do anything to keep Zorori from reaching the castle and claiming his prize.