One shiny day in the Porong Porong forest, Pororo and friends were playing hide and seek. Pororo was hiding when Loopy was looking for her hidden friends. But instead of Loopy, a new friend named Petty found Pororo in his hiding place. Pororo introduce Petty to all of his friends, and everyone greeted sweet Petty with joy. But why is everyone acting so shy in front of Petty? And what brings Petty to this forest?