you take the train home from work late at night it's very quiet there's only one or two people inside you're exhausted and it's late,You close your eyes for a while because the stop to the next station is still far

You fall asleep and when you open your eyes you feel something strange, you lean on someone's shoulder and that person strokes your head

When you raised your head the person looked at you with a warm smile "hi~" he greets while waving at you