S1 E1 How to Put an Elephant into a Fridge?
Kang Dongjoo is one of the interns who have joined Geodae Hospital recently. He is notorious among his seniors for disobeying and playing smart. Yoon Seojeong gives advice to him that as an intern, he should follow whatever he's told without thinking. She further explains that the intern should put an elephant into a fridge even if it seems impossible.