After refusing the boss's instruction, my heart started beating.

An employee, Jeong-hye, is worried about retaliation from her supervisor after she refused a request. Despite the supervisor's initially cold attitude, there have been no clear signs of retaliation over the past three weeks. Jeong-hye continues to do her job and receives both encouragement and cold remarks from her supervisor. Jeong-hye struggles with feelings of guilt, anger, and a desire to be well-regarded by others, oscillating between thinking she was wrong and that her supervisor was wrong.