I opened my perspective and looked at every building and found that the workshop inside was the same as our workshop, and everyone was doing the same job.

After a few rounds, I came to a big iron door, which was closed in front of a yard. The big iron door was locked, and ordinary people couldn't get in.

And the yard has a very secret array, which is very sensitive, a little negligence, will cause a shock, let the guardians inside know that someone has broken in.

It's daytime and cameras are everywhere in the factory. I prefer to start at night.

It's now known that the yard is...