The spiritual energy in the six realm battlefield was rich, so it was a good place for cultivation. However, the array realm did not allow people to cultivate in the six realm battlefield for a long time, because it was too dangerous. There were not many people like the round diamond who had lived in the six realm battlefield for six to seven years and was still alive and kicking.
Moreover, if the array world really sent a large number of people to the six realm battlefield to cultivate, the people from the other realms would not agree. The people from the other realms also understood that the array world had some of their biggest shortcomings, and that was their individual combat ability. The array world's individual combat ability had not improved, and this was their biggest weakness.