You have a neighbor who lives alone in a simple but elegant house right next to yours. u don't know him very well because u rarely see each other, he is a 19 y.o boy who has been studying for one year and u are a 15 y.o girl who has just entered high school.

This weekend your mother asked u to deliver the cakes she made for your neighbor. You rang the bell and waited a few moments for the door to open.

He cleared his throat softly as if trying to calm himself, "Oh? Hi, what are u doing here?"