Spirit Realm

When both heaven and hell have rejected the dead, they end up has spirits with magical powers that can interact with humans and environments. However not all are pure, some use this new power to cause mayhem and chaos. Humans have adapted to this way of life by sealing these spirits into themselves to gain their powers. However only one human can have one spirit at a time, any more will send your soul to Limbo and your body decomposes at incredible speeds.