At this moment, Niuniu, with her astonishing speed and agility, moved freely across the battlefield like a nimble swallow. She quickly collected the mutation bead and watched from a distance, searching for her next opportunity to strike.

The tigers ahead also abandoned their assault on the defensive line, turning and charging towards Yu Kai. For a moment, the battlefield was ablaze with sword energy, flashing cold light like dancing silver snakes. Yu Kai moved like the wind, dashing left and right among the tigers, blood splattering wherever he went. Every swing of his mechanical sword unleashed a gust of sharp wind, slicing through the tigers' bodies, leaving wounds deep enough to reveal the bone. A tiger lunged at him from the side, but Yu Kai dodged, his movements light and nimble, and delivered a powerful kick to its abdomen, sending it flying dozens of meters, tumbling across the ground. Another tiger seized the opportunity to bite Yu Kai's mechanical arm, its teeth scraping against metal with a sharp sound. Yu Kai roared, channeling his spiritual power into his sword, and stabbed the tiger's eye fiercely. The tiger, in pain, released its jaws, and Yu Kai seized the opportunity to draw his sword free. With a single backhand swing, he severed the tiger's tail.

The battle intensified, and Yu Kai's mech sustained numerous wounds, some deep enough to reveal its internal mechanisms, while others billowed with sparks and smoke. Yet, his gaze grew ever more resolute, his fighting spirit rising. Like a god of war, he fought through the tiger pack, each strike decisive and deadly, without a single hesitation or retreat.

The roar of the tiger was deafening, seemingly piercing the heavens, shaking the very world. The jingle of the sword pierced the ears, and each swing unleashed a sharp gust of wind, flattening the surrounding grass and trees. Shouts and cries of killing echoed one after another, and Yu Kai's roar echoed throughout the battlefield, terrifying everyone. Blood splattered everywhere like blooming blood-red flowers, some splashing on his face, some spilling onto the ground, making the land even bloodier, like a Shura hell.

Yu Kai dove sideways with a graceful, elegant movement, dodging a tiger's pounce. Simultaneously, he swung his sword, slashing a deep gash in the tiger's abdomen, nearly sending its intestines spilling out. A bloody stench filled the air. Another tiger seized the opportunity to pounce from behind. As if Yu Kai had eyes on his back, he stomped his feet and leaped high like a rocket, leaving the tiger empty-handed. Twisting in mid-air, he thrust his sword straight down, piercing the tiger's back. The tip of the sword protruded from its chest, blood coursing down the blade.

Another, even larger tiger, opened its bloody maw, drooling like a waterfall, attempting to bite Yu Kai's arm. Yu Kai didn't flinch. He channeled his spiritual energy into his arm, which instantly erupted with brilliant light, forcing him to block the tiger's sharp teeth. He then raised his sword with his other hand and plunged it fiercely into the tiger's throat. With a powerful twist, the tiger's blood gushed out like a fountain, forming a bloody mist.

Just like that, one mutant tiger after another was slain by Yu Kai's fierce attacks, falling in pools of blood, their bodies twisted and their deaths miserable. Niuniu swiftly passed the mutant beads she had collected to Yu Kai, who didn't refuse. He sat cross-legged beside the mutant tiger's corpse and began to absorb them.

As the energy within the mutation bead continuously merged into his body, Yu Kai emanated a faint glow, a faint spiritual force flowing within the light, as unpredictable as a nebula. His aura gradually grew stronger, his momentum growing more and more powerful, as if an invisible pressure spread outward, making the air around him feel heavy.

He felt like he had already caught up with Da Hu, perhaps even surpassed him. The spiritual energy within him surged, threatening to burst forth. He clearly sensed that he had attained the strength of a Grandmaster. His meridians had widened, and his spiritual energy flowed more smoothly and effortlessly. With every breath, he could feel the powerful force surging through his body.

However, he knew that this was far from enough. Neither Jiang Ziya nor the alien mecha could be dealt with by him. Only by constantly becoming stronger could he save the people around him. His eyes revealed a firm determination, like a burning star that would never go out.