A million years after betrayal destroyed the Imperial Clan, Supreme Emperor Kenneth awakens from an ancient bronze coffin with the Emperorfall System. Determined to avenge his fallen empire, he slaughters traitors, rescues the last imperial heirs, and crushes the invading Dark Universe. Leading the armies of all realms into the heart of darkness, Kenneth destroys evil at its source, ends an age-long war, and rises as the unrivaled Supreme Emperor of All Realms.
A group of intruders break open the Supreme Lord's tomb to seize the Supreme Emperor Art. They're shocked when Kenneth, the Supreme Lord who slumbered for a million years, awakens. With the Emperor's Return System activated, he vows to exact revenge on the betraying Wang Clan.
Hailing from the long-lost Age of Fallen Emperors, Kenneth storms the Wang Clan to collect an ancient debt. Dismissed as a lunatic by the clan's Grand Elder, Kenneth effortlessly defeats and kills him, then orders the total annihilation of all Wang Clan members, displaying his unmatched power.
The powerful Heavenly Emperor invades the Wang Clan, dismissing their threats of retaliation from the entire Immortal Realm. He mocks their ancestor as his former watchdog, demands to settle an old betrayal score, easily defeats their summoned ancestor, and vows to destroy their clan, with a system offering rewards for eliminating their traitorous bloodline.
The Heavenly Emperor confronts the traitorous Wang Clan. As some beg for mercy, offering to be his slaves or even dogs, one member threatens him with Immortal Realm envoys. Unfazed, he orders the clan wiped out, declaring they're just the first target to pay for betrayal.
The Wang Clan is completely wiped out, prompting Lord Silas to dispatch 30,000 celestial soldiers to punish Kenneth. Freshly empowered with Emperor Origin, new martial arts, and enormous strength, Kenneth defies Silas' authority, overwhelms his envoys, and forces the soldiers to surrender, highlighting his unmatched power.
Years after the Immortal Clan betrayed and ruined him, Kenneth returns for vengeance. He's slain the Wang family, defied the Emperor's decree, and killed Will. Now he storms the clan's gate, breaks their Emperor-granted Guardian Array, and vows to wipe out every member despite their plea for outside help.
When Kenneth invades the Immortal Clan, terrified members summon their ancient ancestors to halt him. The ancestors rage at his slaughter, but Kenneth reminds them of their past betrayal. He easily defeats the three ancestors, leaving clan members begging for mercy—their fate sealed by their earlier betrayal.
Betrayers grovel before the returning Heavenly Emperor, offering resources and secrets to spare their lives, but he dismisses their pleas. He retrieves the Emperor's Sword Box, defeats the guardian phantom left by traitor Silas, and orders the extermination of all traitorous bloodlines.
After wiping out the Immortal Clan and unlocking emperor powers, Kenneth is besieged by traitor forces like Jade Pool Empress and Nether Clan. He dismisses their accusations and launches a fierce counterattack, showing his unrivaled dominance.
The returned Heavenly Emperor eliminates Chosen One Caleb sent by traitor Silas, gains 1 million Emperor Points, unlocks the full inheritance of the Age of Fallen Emperors, and confronts Silas to demand repayment of all debts with interest.
Kenneth storms in to avenge his clan against Silas, only to face the Zenith Clan's goddess. She invokes Empress Violet's alleged past with him, but he reveals Violet watched him get betrayed without helping. Rejecting their mercy offer, he overwhelms three Quasi-Emperors and Violet's phantom in a shocking battle.
Zenith Clan begs Kenneth for mercy, swearing absolute loyalty to spare their lives. But Kenneth rejects their plea, denouncing their heinous crimes colluding with corrupt forces. When they threaten to kidnap his descendants for blackmail, Kenneth reveals he intentionally spared them to lure out Silas' backers, sparking intense tension.
Four Imperial Clans, allied with 200,000 Immortal Realm troops, besiege the Moon Clan, demanding they hand over Supreme Lord Kenneth's orphan. Grateful for Kenneth's past salvation, the Moon Clan vows to protect the orphan to the death. As their defense array breaks and defeat nears, Kenneth's imposing aura suddenly descends, turning the tide.
The Heavenly Emperor returns and is greeted by Moon Clan Patriarch Yasmine. He learns the four Imperial Clans hunted his descendants for a million years, vowing cruel revenge. In a desperate move, one culprit detonates his Half-Emperor Origin to take everyone down.
Kenneth cripples a Skyllas Clan member, vowing to destroy their million-year-built empire. He forms an alliance with the Moon Clan and orders his army to settle age-old grudges systematically. Meanwhile, the injured Skyllas pleads with Silas, who secretly plots to ally with the Dark Clan and rally Kenneth’s enemies for revenge.
The Heavenly Emperor arrives at Spirit Mountain. The elders beg for mercy, offering half resources to submit, but he exposes their million-year atrocities: draining his clan's children's blood for pills and massacring innocents. Rejecting reconciliation, he's here to settle scores and will use them to lure out hidden foes.
Supreme Lord Kenneth confronts the Nether Clan’s million ghost soldier array. He unleashes Emperor's Sword Art to defeat them, rejecting the clan leader’s desperate plea for mercy. When the Jade Pool Empress begs for forgiveness and exposes Quaid’s secret alliance with Dark Clans, Kenneth reveals he’s using Quaid to lure out hidden traitors from the million-year-old betrayal.
The Heavenly Emperor returns to execute traitors who betrayed his clan, meting out harsh punishments to accomplices. Meanwhile, Silas sends an envoy with huge rewards to forge an alliance, vowing to eliminate Kenneth permanently, setting the stage for a fierce showdown.
Kenneth confronts Quaid, who colluded with the Dark Clan, warning the clan's elders he'll settle scores personally. Silas gathers Immortal Realm forces, planning to activate the Heavenly Array with extracted Emperor Origins to kill the fully restored Kenneth, tempting allies with peak power.
When foes unleash the legendary Heavenly Array—said to have slain the Chen Emperors and forged with Myriad Realms power to kill Emperor Realm warriors—Kenneth scoffs at it as a pathetic replica. He boasts even the original array is no match for him, targets the array's core, and prepares to wipe out his overconfident enemies.