The subways in Tokyo are very crowded to the max during rush hours, so crowded that a special attendant will push people in the passenger car so that it will be filled to the maximum.
Such occurrence do make the women feel uncomfortable, especially squeezing with strangers.
Thus, because of these, the railway companies had introduce the Women Only passenger cars, (depending on the train) which will be applicable during certain hours of the day. It was also known, that such policy have also been adopted by many cities around the world.
Women Only Please.
Yeap, only women are allowed to board this particular section of the train.
So for the guys, need to board another section of train, on man, now how to find girls now ah, aiyoh so difficult now meh.