my funny train story

I can go anywhereTokyo on a train.
I use a train approximately every day.
I live in Mitaka.
In Mitaka, There are Chuo Line and Soubu Line and Tozai Line.
I went to Nishitachikawa the other day on Chuo Line.
When I go to Nishitachikawa, I get on Ome Line in Chuo Line.
Because there are few users, all doors do not automatically open on the Ome Line.
I pushed the button myself at the time of getting off and opened it.
I did not know it.
I thought that a door was out of order.
I was surprised.