She grumbled in a sullen voice and turned back.
She even closed the window with a bang.
"Kyosul!"
He knocked on the window again, but she didn't open it again.
He bit his lip, regretting that he teased her too much. Then he put his hand on the window gently and imagined her standing across the window in the room.
"I'm sorry. I think I carried the joke too far because I really couldn't tell you the truth right from the beginning."
"Do you know how surprised I was?" she said in an angry voice.
Calming her troubled feelings gradually, he comforted her and said, "The fall is just around the corner. Perhaps you remember that I've been very busy preparing the state civil exams to be held during the fall, right?"