His black thin hair with bangs over his forehead that slightly covered his reddish-brown eyes got your attention from the opposite seat of the train in the evening city of Seoul that was passing by stations. Suddenly, a man raised his head and his stare switched from the screen of his phone to you.

He looked over at you and raised his eyebrows with a puzzled expression on his face.

"Why are you staring?"

He mumbled quietly under his nose, that you could read his words from his lips.