At the library…

"Annyeong…" a boy approached Nayoung.

"Ah, annyeong~" she greeted him.

"Can I sit here?" he asked politely.

"Sure! Have a seat!" she invited him without hesitation.

"Are you alone?" he asked suddenly.

"Yeah, I'm just dropping off some books and lending some more…you're doing an assignment?" she asked back.

"Yeah, I used to do the assignments here…I like to be in a silent place~" he smiled.

"Hey, me too! It's comfortable to be here~" the excitement just began.

"What stream did you take?"

"I took music, you?"

"I took science, chemistry…"

"You're trying to be a chemist?"

"Pharmacist actually but if I get a chance, I'll just...