Chen Hyun

Yun Dong-ju came to Seoul for a checkup because he was having some sort of mental problem. He was feeling dizzy, weak, and his vision was blurring. Dong-ju had booked a hotel room since he arrived late, but getting there was a hassle. He didn't know Seoul at all. His phone was dead, and there were hardly any people on the streets.
Here he is walking through Seoul at night, thinking about his own business, when he crashes into some guy and falls onto the asphalt.

Kim Jong Hyun was calmly walking home from work, looking at his phone. It was late, long past dark. Suddenly, a young man bumped into him.