The story isn't as complicated as one might imagine.
Twenty years ago, the lackeys of the alien invaders came to the Wei Family, seeking out the current Patriarch, Wei Bai.
The purpose was to have the human elites of the underground world collaborate with the humans on the surface.
Wei Bai was shocked to learn that there were still surviving humans above ground, and thus he engaged in a very formal meeting with them.
At that time, those lackeys of the alien invaders were very amicable and courteous; their demeanor could hardly be described as "negotiation," but rather as "discussion."
They informed Wei Bai about the situation above ground, presenting the state of the thriving cities through photos and holographic projections.
For the first time, Wei Bai saw the sky, and he was incredibly excited because his life's pursuit was to lead the people of the underground world back to the sunlight.
