All of sudden... I felt the need to stop at this "border" ...

One like this —

Since once it lowers, the time till it lifts is on the longer side...

see?

For example

There you are,

Normally, should the sound ring, I would turn my steps to the detour of an under-ground passage, yet...

Cinderella Girls Theater

The reason being that during the time of "twilight" ...

This crossing on my way back from school