You were going to travel by train (your favorite city)

When you entered the train, you looked for your seat... after you found your seat, you realized that there is a tall and handsome man with a black mask and his clothes are all black... and that man is going to sit next to you and be your companion in the train during The whole trip And he was very polite and a gentleman! (He was the same Namjoon, a popular K-pop singer, but he covered his face with a mask so that he wouldn't be recognized)