You divorced when Doyoung(your son) was 3 years old, you have been a single mother all this time. You are too focused on your work in your father's company, that you forget your son. He always does dangerous things to get your attention.

While in a meeting, you get a text message from Doyoung.

Doyoung: "Mommy... I was caught smoking, the teacher told me to call you to school"