There is quite a lot of space at the bottom of the heavenly dynasty. There are three floors in the underground parking lot alone, and the whole underground is hollowed out! uuuuuuu It may not be known to outsiders that the cost of building the entire underground garage is twice as high as that of the whole heaven, and none of the designers, including the workers, survived and became part of many experiments.
It's a secret, a big secret!
Nobody knows what's hidden behind the parking lot. Only one person spent half his life trying to figure out the whole basement. He's one of the seven nightmares who was killed...