The ground trembled as the massive form of the Leviathan Slime surged forward. Towering over Kento and Rena, it shimmered with deep purple and pulsating energy, its body shifting like a wave of destruction.
Rena's wings fluttered as she hovered beside Kento. "That's the Leviathan Slime. It's said to be the most destructive slime in the world. We can't let it go on like this, or it will destroy everything in its path."
Kento gripped the Blade of Seven Killers tighter, watching the creature's chaotic form. "We'll stop it, together."
The Leviathan Slime let out a roar, sending waves of acidic goo toward them. Kento dodged as Rena created a barrier of light to shield him from the attack. The air crackled with intensity as the slime's destructive power threatened to overwhelm them.
"Kento, we need to strike at its core," Rena called out, focusing her magic. "Only then can we subdue it."
The battle raged on as Kento moved in, deflecting the Leviathan Slime's attacks, each strike making it more volatile. Rena hovered above, channeling her light and dark powers into the Blade of Seven Killers, preparing for the final blow.
"Now!" Rena shouted as she infused the blade with her energy.
With a swift motion, Kento lunged toward the Leviathan Slime, plunging the blade into its core. Rena's energy coursed through the weapon, sending waves of power into the creature. The Leviathan Slime shuddered, its chaotic form starting to stabilize.
Kento could feel the beast's will fighting against him, but with Rena's help, he focused on calming it. Slowly, the Leviathan Slime's rampaging power began to fade. Its body shrank, and its dangerous aura dissipated, leaving behind a smaller, more manageable form.
Breathing heavily, Kento stood over the now calm creature, its wild eyes now softened. "You're not a monster anymore," he whispered, placing a hand on its gelatinous form. "Your name is Liru now."
Rena landed beside him, her smile bright. "You did it, Kento. Together, we've tamed Liru."