From Yeondoo

Young-hee and Young-eun, visit their grandmother’s house in the countryside on a summer break. At their grandmother’s house, the sisters meet the enormous frog, Yeondoo, that walks on two feet. Young-hee keeps distance from Yeondoo at first. With time, Young-hee and Yeondoo come to understand each other. Young-hee matures in the process of resolving the misconceptions on Yeondoo.