As for Du You's attack on the Dragon Clan, it simply couldn't be hidden. The moment the battle ended, all the observing tier-nine experts knew the result, a result they weren't willing to accept at all.
Earth's aggressiveness is too strong; if left unchecked, the stronger it becomes, the more dangerous it will be.
Moreover, Du You's aggressiveness is also very strong, and his power grows rapidly, which is very troublesome.
A late-stage tier-nine expert, as long as it's not entering a powerful world and being targeted by its guardians, there's no way to deal with it. Outside, anyone who encounters them would have a headache, not to mention there are several of them.
The Dragon Clan World is already a top-tier world, yet even so, it was resolved by Du You and his group.
