Follow the adventures of Pororo, a very curious impish little penguin, Poby, a good-natured polar bear, Eddy a smug nosy red fox and Loopy, a shy and timid little beaver. Crong can't stop his hiccups ...

Hiccups are caused by the diaphragm involuntarily contracting. Some common causes for this contraction include drinking carbonated beverages, eating a large meal, swallowing too much air, or stress.