This truly is the battle for the survival of the Human Clan, with powerful attacks launched from all six directions—east, west, south, north, above, and below—against the Human Clan. The saints are fighting three against one, aiming for nothing less than the extermination of the Human Clan.
Fortunately, when Peter Brown was around, he managed to take down some of the saints from various tribes, allowing the Human Clan, with only four saints, to withstand the onslaught from the other clans.
However, all these attacks were only held off by relying on the power of the Heavenly Dao.
The reason why the other tribes haven't invaded yet is solely because the world's will is strong, greatly suppressing their power upon entry.
Apart from the four saints, the Human Clan also has five individuals close to Becoming Saints. Though not as powerful as saints, when bolstered by the world's will, they can still battle against the foreign saints, though the struggle is immensely difficult.