Clown doctor. Last chance to say goodbye

High school student Yuhan can't stand the smell of medicine and hates hospitals. But she returns there time after time because of a feeling of guilt: Yuhan did not have the courage to say goodbye to her little sister on the day of her death.
One day, Yuhan meets a clown doctor in the hospital corridor. Several times a week he puts on a red nose and a colorful suit and brings laughter, smiles and joy to children.
The clown invites her to become one of them. Despite his fear, Yuhan agrees to undergo training and begin work. This may be her last chance to accept what happened and finally say goodbye to her sister.