With 200 days left before college entrance exams, In-hye, who cares for the school's animal pen, spends her time lecturing a duck instead of studying. Seo-hee, punished for carrying a knife, joins her, and they discover an abandoned meadow where they lose the duck, Hee-seon. Meanwhile, teacher Kim Ah-tae forms a college interview prep group for four neglected students. On interview day, In-hye and Seo-hee ditch school to find Hee-seon, camping in the meadow and gradually learning to survive in the wild.