A thousand years ago, the forces of the eight Immortal Emperors came out in full force, besieging the Palace Master of the Nine Heavens Immortal Emperor Palace and annihilating a hundred thousand disciples of the palace.
That battle involved a million immortals from both sides, lasting for ages and was extremely fierce, with massive losses on both sides in the end.
The two elders from the City Lord Mansion were also part of that battle, led by the Ice River Immortal Emperor, and were severely wounded, nearly perishing. It took them a century of recuperation to finally recover.
During that battle, these two elders had the fortune to catch a glimpse of the true visage of the Invincible War Emperor, a legendary figure in the Immortal Realm. Although it was just a fleeting glance, they haven't forgotten it to this day.
