You may think something sad happen to them, but it is very often seen in the train in Tokyo.
Some people are tired from their work, while some others are busy enjoying a game or checking something with their smart phone. Whatever the reason is, most of people are hanging down their head.
When I was in Hong Kong for a business trip, it was very impressive that people in the train talking loudly to each other, very different from Japan.
I prefer quietness in a train, but as long as I see those people in the picture looks blue, I do not like this atmosphere.
