A cold and eerie aura surged forth from the Four Heavenly Sovereigns' Blood River, like a storm, sweeping across all areas it touched. Whether from the Flame Alliance or the Lion-冥 Sect, the blood within every individual's bodies suddenly boiled violently, followed by a series of crisp explosions—thunderous bursts of sound—causing countless bodies to burst into splendor, their blood pooling across the ground and turning it a deep, vivid crimson. The indiscriminate slaughter unleashed by the Four Heavenly Sovereigns naturally sent shockwaves through both parties. Those near the abyss hurried to retreat, and within mere moments, the area became utterly deserted. "You've gone mad! What are you doing? Didn't you remember our agreement?" The Lion Tian, who had previously been severely injured by Xiao Yan's single palm strike, finally regained enough breath to speak. Seeing the Four Heavenly Sovereigns now launching a relentless assault on the Lion-冥 Sect's forces, he was furious and roared in outrage. The Four Heavenly Sovereigns floated above the sea of blood, calmly gazing at Lion Tian's furious outburst, then slowly raised their hands toward him, and with a sudden firm grasp, pressed them together. "Boom!" As the Four Heavenly Sovereigns closed their palms, Lion Tian's roar cut off abruptly, and his body instantly exploded, splashing blood in every direction. Witnessing this—having even casually slain the Grand Master of Shīmíng Sect—many of the Shīmíng Sect's elite were deeply startled, though furious, they dared not raise their voices again. Even Lion Tian had been unable to withstand the Sovereigns' effortless palm strike; how could they, then? Moreover, several other Shīmíng Sect warriors who had been brought in under pressure and inducements were not truly loyal to the Sect and thus could not step forward to defend them. "Retreat the military lines of the Inflame Alliance. This one is capricious—ordinary troops are merely sent to die." Color-Lin furrowed her brows, speaking with gravity. "Hmm." "Heard this, Xiao Ding and Xiao Li also nodded in agreement, then swiftly issued orders for the outer troops to retreat back into the stronghold. 'Now we can only rely on Xiao Yan to hold off this opponent. Otherwise, the Xuan Huang Stronghold will surely see bloodshed all over...' Hai Bopo Dong said, his face serious. 'Hmm...' Even Cai Lin could only nod in response. The so-called Four Heavenly Sovereigns clearly possessed an overwhelmingly formidable strength. Indeed, none of them here could match such power, so all their hopes were fully placed upon Xiao Yan." In the sky, Xiao Yan furrowed his brows, gazing at the Four Heavenly Sovereigns who, with mere gestures, could cause a human body to explode from within. A flicker of contemplation passed through his eyes: "This one is said to be the Sovereign of the Blood River, and he's also skilled in the so-called Blood-Transforming Method—presumably, he can control the blood within a person's body." Xiao Yan had encountered other masters capable of controlling human blood, yet none had demonstrated such overwhelming power as this Four Heavenly Sovereign, who, with a simple movement, could obliterate a Six-Star Battle Sovereign entirely—though the Lion Heavenly Sovereign himself was already severely wounded, the sheer strangeness of this individual's techniques could not be overlooked. Splashing! As Xuanyin pondered, sudden ripples surged within the sea of blood. Then, the four Heavenly Sovereigns stepped forward, one footfall at a time, walking steadily through the void, ascending step by step into the sky, until they halted a short distance in front of Xuanyin. Their long, blood-red hair swayed gently with the wind, and the scent of blood gradually spread throughout the heavens. As the Four Heavenly Sovereigns' words had just finished, Xiao Yan suddenly felt his blood surging uncontrollably within him, as though it were swelling and threatening to burst through the blood vessels and spill out of his body. Noticing this internal transformation, Xiao Yan's face also changed. Indeed, his so-called "Blood-Transforming Method" seemed to have some depth. However, just as he was about to calm the surging blood, his heart suddenly gave a strong, vigorous beat. Then he realized a strange force emanating from within his heart, flowing into the blood vessels. As this force merged with the blood, the sensation of boiling and turbulence gradually faded away. "This... is the blood he fused with during the Heavenly Tomb's integration?" This development left Xiao Yan momentarily stunned. With a touch of surprise, he realized that this newly formed blood was remarkably strong—so strong that even the Four Heavenly Sovereigns' Blood-Transforming Method had no effect upon it at all. "It seems your Blood-Transforming Technique isn't as powerful as you claimed..." Sensing the blood within him gradually calming down, Xiao Yan lifted his head and smiled at the four Heavenly Sovereigns. "What's going on?" Seeing Xiao Yan unresponsive, the four Heavenly Sovereigns were taken aback, their brows furrowed. Their Blood-Transforming Technique was itself a Heavenly-tier Combat Skill—strong enough to disrupt even half-Saint-tier warriors, causing them to divert attention and be momentarily suppressed. Yet, it seemed to have absolutely no effect on Xiao Yan. Xiao Yan smiled gently, quickly forming a series of unusual hand seals. As each seal took shape, a distinctive clan emblem slowly emerged at the center of the Sovereign's forehead. "The Xiao Clan Emblem? You've actually awakened the ancestral bloodline of the Xiao Clan!" The four Heavenly Sovereigns were startled. It was well known that the Xiao Clan's bloodline had long since been abandoned. Yet here, Xiao Yan was able to summon this emblem once again. The Four Heavenly Sovereigns' queries went unanswered, and at the very moment the clan seal manifested, Xiao Yan's aura surged dramatically, reaching a level that was no longer inferior to theirs—the full potency of the clan seal's amplifying effect was now perfectly realized. "Ah…" Feeling the intense surge of qi within his body, Xiao Yan took a deep, refreshing breath and then raised his head, offering the Four Heavenly Sovereigns a gentle smile. With a forward step of his foot, his form vanished at the instant of contact. "Even if the Blood-Transforming Technique proves ineffective for you, I can still determine your precise location by sensing the flow of your blood. Therefore, your speed holds no advantage for me!" "As Xiao Yan vanished, the Four Heavenly Sovereigns sneered, swiftly retreating three steps with their feet. Waves of crimson qi flowed through their body, gathering at their palms to form a thick layer of blood-bound seals, before they suddenly slammed it hard against the empty space on their right: 'Come out!' The stench of the punching wind caused the space to warp instantly, and there, a figure emerged—Xiao Yan himself. Though his position had been revealed, Xiao Yan showed no intention of dodging. Instead, he stepped forward, allowing the attacks from the Four Sovereigns to strike his chest with full force. At the same time, his scorching punch surged with a sudden roar, countering the Sovereigns' blows with relentless force directly onto their chests. The exchange was crude, unrefined, and simply a mutual collision of power. 'Boom!' Both of their fists landed with solid force upon the other's body, yet Xiang Yan, who had endured a punch from the Four Heavenly Sovereigns, only shook slightly at his shoulders, his expression remaining unchanged. In contrast, the Four Heavenly Sovereigns were directly pushed back several steps by Xiang Yan's single blow, emitting a deep grunt as if struggling to keep up with the intense, blazing force of his attack. "If we keep exchanging punches like this, it seems you may not be able to hold up," Xiang Yan said, smiling gently and lightly brushing his robe. The four Heavenly Sovereigns stared at the robe upon Xiao Yan's body with a grave expression. Having fought closely, they naturally understood that the vast majority of their attacks had been absorbed by this strange garment. Yet what puzzled them slightly was that even though the robe absorbed most of the assaults, it still inflicted some damage—no attack had been completely harmless. This effect, naturally, stemmed from the ancient dragon-phoenix armor concealed beneath Xiao Yan's skin. However, such a hidden layer was something the four Sovereigns could scarcely have anticipated, even after pondering it thoroughly. Not only was Xiao Yan's robe peculiar, but his skin itself was equally unusual. The Sovereigns fixed their solemn gaze upon Xiao Yan, who could withstand their attacks, yet they could not ignore them. This kind of battle truly left them deeply frustrated. Yet these four Sovereigns were no ordinary figures. He knew that his earlier attacks had failed to harm Xiao Yan not for any other reason than insufficient strength. Since the strength had been inadequate, he would now summon even greater power—power strong enough to completely reduce Xiao Yan to mere dust! "Blood-Transforming Technique! Great Blood-Devouring Art!" The four Sovereigns' faces grew grim, and a sharp, thunderous roar erupted, resonating across the heavens. As this cry fell, within a thousand zhang radius, any strong beings below the Battle Sovereign level instantly exploded, their bodies rupturing and transforming into cascading streams of blood that surged into their very beings. At the same time, the vast sea of blood swirling in the deep ravine surged violently, rising into towering waves of crimson that surged relentlessly into the Sovereigns' bodies. As the terrifying blood was consumed by the Four Sovereigns, the previously still aura within him unexpectedly began to subtly waver, then gradually rose and surged... "Xiao Yan, don't treat me as a mere waste like Magu's rain. Today, I claim the bloodline of every member of your Xiao family—including your newly awakened bloodline!" The blood sea swelled, the sky darkened. A solemn, cold voice, radiating an overwhelming pressure, spread throughout the heavens!