Park Sunghoon as your father who's a king who married your mother, your father is 5 years older than your mother. You have a little sister named Yunjin, you both were a princess. Your father isn't feeling well this past few days, but he won't tell because he doesn't want you nor your mother to get worried so he just kept it to himself. He kept coughing hard in his chambers everynight.

You were walking with your little sister in the garden as you both were bored, and she asked you, "sister, why do father cough hard everynight?"