There lives a cute little beaver named Loopy in a small forest village of an ice land. Loopy is hanging out with friends who are building a snow castle. Soon, Loopy misunderstands Pororo for throwing a snowball at her while Crong was the one who did that, and starts a snowball fight with Pororo. The snowball fight is getting serious. As Pororo goes too far, Loopy bursts into tears...