Pororo always plays pranks on friends. If he’s not destroying Crong’s castle made of blocks, then he’s taking Crong’s cookies without asking. Annoyed with Pororo’s constant pranks, Crong packs his things and goes to Poby who has always been kind to him. Crong ends up spending the night with Poby and Harry. At first, Crong is happy, but playing with Poby and Harry isn’t as fun as playing with Pororo. Meanwhile, Pororo goes to apologize to Crong, but when he sees Crong laughing and having fun, he only gets his feelings hurt…