Sigh Factory

The world is facing a resource crisis. Scientists have discovered that a special energy can supply resources. This energy comes out of people's mouths. Just take a deep breath and exhale from the mouth, and it can be converted into electricity, oil, pure water, etc. On the highways in first-tier cities, this sighing method of refueling was first implemented... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.