The Ancient Ruins and the Martial Field were both special Independent Realms, and it wasn't easy to open a passage to them.
The spatial field's experts had all undertaken this task for entrance into the Sovereign Road, and it was because of this that they managed to succeed smoothly. However, despite this, they could only keep the passage open for a limited time, and it was never any longer than five minutes.
Jiang Chen was more proficient in this field than anyone, and that was why he understood clearly how high was the task's difficulty, and it was especially the case because the Martial Field was controlled by the three great factions.
Even if Jiang Chen prepared enough manpower, he would still need to get their permissions, and it seemed now that the Sovereign Spirit Palace, the Martial God Palace, and the Xia Clan wouldn't help him.