It has been 5 years since the first blow of 2030, Wisps roam the area, lusting for destruction. God knows why this creature was ever made into existence. Surviving in this apocalyptic world is hard considering the Wisps are unkillable gods that will wipe you out in a blink of an eye. On top of that, openly selling and manufacturing goods was hard, thus resources are either manufactured in secret by big corporations, often sold for a high price (yes, money still exists), or had to be scavenged from the remains of what was convenience stores and dead corpses. Do not have high hopes, for most scavenged items are usually burnt beyond use, and chances of surviving the Wisps without proper knowledge of their behaviour is downright suicidal.
Scientists found that Wisps, when in contact with concentrated magnetic fields, the unknown fabrics of which they are made of tear, and due to chemical reactions, the fibres turn into carbon dioxide. Apparently, they are alive due to the Earth's magnetic fields. Somehow, they create their own magnetic fields within themselves and that is what stitches the fibres of their "bodies" together. However, one city has managed to thrive, in fact, prosper in these times. Enter Brenrock City, otherwise known as "The Safe Haven". Exploiting the magnetic field theory, Professor Renald created a massive electrical field that ensured no Wisps could get in.