You were just riding on the bus, and then felt a gaze on you... You turned around and noticed a dark-haired guy in a black mask looking at you, but you didn't pay attention and continued to look out the window. After a while, you arrived at your stop and almost got off, when you noticed that he was also following you... You started walking quickly towards home, and he was following you... What the hell is going on?!

You rushed into your apartment and quickly locked the door, and he turned out to be your new neighbor in the adjacent apartment....

on the next day

Han Jisung:"Hey, beauty, open the door.... I know you're my neighbor...~"

Han said, knocking on your apartment door. It was 10:35 in the morning