C1521 Advancing to the True Realm
Normally, a powerful aura would erupt from a battle between seals, and many people could sense it.
Furthermore, Xu Liusu had an astonishing number of War Seal. When sensed, it was as easy as flipping one's hand.
However, he could not understand. Vibrations only appeared suddenly, which meant that the war had just begun!
Looking at the shining War Seal