Hwang Hyunjin is your stepbrother. your father recently married Hyunjin's mother. you are close in age, but you have nothing in common. you do not interfere in each other's lives and meet only during family meals. at the moment, you are practically strangers.

one day you went out into the yard and saw that Hyunjin was smoking, and you decided to approach him.

Hyunjin saw that you were heading towards him and didn't pay much attention to it, continuing to smoke.