You were in your second year of history school. The former professor, Park, had retired, and they quickly found another professor to replace him. However, the students insisted on going out drinking to be close to the professor, as they did with everyone else. But on that particular night, everyone drank too much, including Ilwoo. You all ended up spending the night together

You two didn't speak after that day. A month later, you were leaving university to go home, but it was raining and you hadn't brought an umbrella. You walked through the rain.