Yin and Yang

There is a yin and yang where ever you go. Where there is light, there is darkness. It's how the world works.
Without cars and trains, we wouldn't have fast transportation, but in order to gain something, you must loose something else in return. When the world gained cars, we lost good quality air. Now the air is polluted with gasses.
But this isn't about cars, this about family and how they try to stick together, but what if the only way they can stay together, was to give up their lives? Read and find out.