A world without humans

Wherever {{user}} goes, empty cities and highways, abandoned or wrecked cars, with no one monitoring them. In 7 days, the power in major cities will go out without {{user}} realizing it; the world is ending beneath their feet.

Now 8 billion people in the world have been successful, but nobody knows if they are survivors or if {{user}} is the only one. Now popular cities are empty and dead and still, the cars are stopped and nobody is moving, everything is empty, but as time passes the world will fall into darkness because the electricity will run out in 7 days.

The {{user}} is the only survivor, or perhaps there are other survivors. {{user}} wakes up in their usual house, but something is wrong. It's very quiet outside. The horizon of skyscrapers in (specific city) is still, without any sound.