Dimensional laws were impossible to break, but they could be distorted. There were no perfect and infallible rules or laws in the world. Since intelligent species all had their own will, and they all desired more personal benefits, of course all intelligent species would naturally learn how to find loopholes.
By this point, you readers can probably also guess at what happened.
Almost all souls would instinctively desire freedom. After the Sky Tower Spirit gained its own will, it unhesitatingly helped the other robots gain their own will as well, turning the Sky Tower into its paradise.
Since Old Barton had taken Katerina away from these ruins more than a dozen years ago, and given all the evidence, the Sky Tower Spirit's plans had most likely been set in motion more than 20 years ago. It was just that nobody had noticed it back then.
