Chapter 31:

Kagari

From Terminally Ill to Unbreakable: I Became the Greatest Healer With My Medical Knowledge, but the Sisters Only See Me as Their Test Subject


The platform shuddered as the creature's curse took effect. Deep vibrations traveled up through the tower's structure, and I could feel something immense stirring far below us.

"Ken!" Kaguya called out, but her voice sounded strained. Something was wrong.

I turned to see both sisters swaying on their feet, the battle's toll finally catching up with them. Three days in the creature's prison had drained them more than they'd let on.

"You're in the back drawing," a voice hissed from nowhere, echoing the dead creature's words. "You annoy me! Let's see you plan around this!"

The curse manifested as a writhing tentacle of pure malevolence, shooting up from the creature's remains. It moved with impossible speed, targeting Kaguya's chest while she was too weakened to dodge.

Karin threw herself between them.

The spectral tentacle punched through her torso, emerging from her back in a spray of blood and light. She looked down at the wound with surprise, then at Kaguya's horrified face.

"Big sisters," she whispered, "always gotta protect the little one."

She collapsed.

Something broke inside me. The crystal patterns under my skin flared darker, taking on colors that had never existed in nature. Light became shadow, healing became destruction, protection became vengeance.

I launched myself at the dissipating curse with fury that transcended rational thought. My attacks became desperate, vicious, powered by grief and terror rather than skill. But there was nothing left to fight. The creature was dead, its curse already fading.

Kaguya knelt beside Karin's motionless form, tears streaming down her face. "Please," she whispered. "Please don't leave me."

Grace landed on Kaguya's shoulder, singing a melody unlike any I'd heard before. Complex, urgent, filled with possibilities that existed beyond normal understanding.

Kaguya's eyes widened. "Grace?"

The world around them shifted, becoming something between dream and vision. Grace stood before Kaguya in the form of a small child with pure white hair and golden eyes.

"I can save her," Grace said, her voice carrying the weight of cosmic forces. "But the price is everything you are."

"I don't understand."

"Your soul and hers, merged into something new. Neither Karin nor Kaguya, but both. You will live, but you will not be the same people who die today."

Kaguya looked at Karin's pale face, at the blood pooling beneath her sister's body. "Will she survive?"

"She will live. You will both live. But as one person, carrying both your memories, both your loves, both your purposes."

"Do it," Kaguya said without hesitation. "I'll do anything to save her."

Grace nodded sadly. "Then let go of who you were, and become who you need to be."

Light exploded around the sisters, brighter than anything I'd ever seen. When it faded, a single figure knelt where two had been.

She had Kaguya's analytical eyes and Karin's fierce expression. Her hair flowed like flame, red and gold and colors that shifted with her emotions. She wore clothes that seemed to be made of crystallized fire, and when she stood, power radiated from her like heat from a forge.

"I am Kagari," she said, her voice carrying both sisters' tones in perfect harmony. "And you have hurt my family for the last time."

The dead creature's remains stirred, as if responding to her words. Residual corruption tried to rise from the ash, seeking one final act of spite.

Kagari raised her hands, and flames erupted around her in a spectacular display. The fire wasn't just red and orange; it cycled through the entire spectrum like living auroras. Brilliant sapphire blue flames danced alongside emerald green tongues of fire. Violet and indigo spirals twisted upward while golden streams poured from her palms. Each color burned with different intensities, some cold as starlight, others hot enough to melt stone.

She launched herself at the corrupt remnants with incredible speed. Where her feet touched the ground, chromatic fire bloomed in her wake: scarlet patches that shifted to turquoise, then to silver, then to colors that had no names. Her attacks were beautiful, deadly art painted in impossible flames.

A sweeping gesture sent a wave of prismatic fire washing over the creature's remains. The flames shifted from deep purple at the base to brilliant white at the peaks, consuming every trace of corruption with mathematical precision. Kagari's flames combined chaos and order, burning with perfection that transcended individual skill.

I stopped my desperate assault, staring at this impossible fusion of the people I loved most, wreathed in fire that looked like captured rainbows.

"Karin?" I called tentatively. "Are you okay?"

Kagari glanced at me, and for a moment I saw both sisters in her expression, her chromatic flames dimming to a gentle amber glow. "Not quite. Yes and no. But what matters now is making sure nothing like this ever threatens our family again."

She turned back to the scattered remains, her flames shifting to pure, cold blue that burned away the very concept of corruption. Each blast targeted specific points where malevolence might try to regenerate, the colors cycling through hues that made reality itself seem more vivid.

When the last trace of the creature's essence burned away in a shower of golden sparks, she nodded with satisfaction. "It's finished."

But even as she spoke, the tower shuddered again. The creature's dying curse had done more than create that spectral attack. It had awakened something vast in the depths below.

"The explosion was intentional," I said, understanding flooding through me. "The creature used its death to breach something."

"A final gift to the thing below," Kagari agreed, her dual voice carrying both Karin's fury and Kaguya's analytical dread. Her flames shifted to warning colors: deep red mixed with black streaks. "It used its death to break the containment."

The tower began to shake more violently. Cracks spread across the platform, revealing glimpses of something moving in the depths below. Something large enough that its stirring movements could destabilize the entire structure.

"We have to get out of here," I said, but even as I spoke, I could feel it wouldn't be that simple.

The presence below was vast, ancient, and now partially awake. It had been waiting for exactly this moment, when someone bearing the goddess's mark would be close enough to serve its purposes.

Kagari grabbed my hand, her touch burning away the last traces of corruption from my crystalline patterns. Her flames had settled into a steady, protective aurora that swirled around both of us. "Together," she said. "Whatever comes next, we face it together."

Grace landed on my shoulder, her song taking on urgent, warning tones. Through our connection, I felt her fear. Not for herself, but for what was rising from the depths of the tower.

The vibrations intensified, and suddenly the entire tower lurched. Stone and metal screamed as something immense shifted its weight far below us. The platform we stood on tilted at a dangerous angle, forcing us to grab onto crystal formations to avoid sliding into the abyss.

"It's not just waking up," Kagari said, her voice tight with concentration as she maintained her balance. Her flames spread wider, creating handholds of solidified fire for us to grip. "It's trying to break free."

"How long has it been imprisoned here?"

"Long enough to plan exactly what it would do when someone like you arrived."

The tower shuddered again, and this time we heard something that chilled our souls. Laughter. Deep, resonant, filled with malevolent joy that echoed up from the depths.

Finally, a voice whispered in our minds, carrying the weight of eons. The goddess's chosen has come to me at last.

I felt Kagari's hand tighten in mine, her flames flaring protectively in brilliant defensive spirals of silver and gold.

The platform beneath us cracked completely, and we fell into darkness just as the sleeping god's laughter shook the foundations of reality itself.

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The explosion when we hit the lower levels was massive. Stone, metal, and crystalline formations erupted outward as our combined impact triggered some kind of chain reaction. The blast wave swept through the tower's interior, bringing down walls and ceilings in a cascade of destruction.

When the dust finally settled, I found myself lying on a pile of rubble, my body aching despite its enhanced resilience. The crystalline patterns under my skin pulsed weakly, drained from the fall and the explosion.

Tears ran down my face, cutting tracks through the dust and debris. Everything hurt. Not just my body, but my soul. Karin and Kaguya were gone, transformed into something new. I'd lost the people I loved most, even if they'd gained a different kind of life.

"Ken?"

The voice was familiar but strange. Familiar tones blended in ways that shouldn't be possible. I looked up through blurred vision and saw her in the distance.

Kagari stood among the wreckage, her flame-colored hair dimmed by dust but still shifting with inner light. She looked solid, real, but somehow more fragile than either sister had ever seemed individually.

I ran to her, stumbling over debris, and pulled her into my arms. She felt warm, alive, but different. The embrace was right and wrong at the same time.

"I'm sorry," I whispered against her hair. "I'm so sorry I left you both. I thought I could handle this alone, I thought I was protecting you."

"You were being Ken," she replied, her voice carrying Karin's gentle teasing and Kaguya's fond exasperation. "Stubborn, self-sacrificing, convinced you could carry the world's weight alone."

"I lost you. I lost both of you."

"You didn't lose us." Her arms tightened around me. "We're still here. Different, but here."

I pulled back to look at her face, seeing features that belonged to both sisters but somehow created someone entirely new. "Are you happy? Being... this?"

Kagari was quiet for a long moment, and in that silence I heard echoes of conversations the sisters used to have. Finally, she smiled, and it was heartbreaking in its familiarity and strangeness.

"We're together," she said simply. "We're with you. We're alive. That's enough for now."

Grace flew down from somewhere above us, landing on Kagari's shoulder with a soft trill. The canary's song was subdued, mourning what had been lost while celebrating what remained.

"What happens now?" I asked.

Kagari looked around at the destruction surrounding us, then up toward where daylight filtered through the tower's broken walls. "Now we go home. Back to the clinic, back to healing people, back to being a family."

"A different family."

"A family that chose to stay together no matter the cost." She took my hand, her touch still carrying the warmth I remembered. "Come on. Let's go home."

As we picked our way through the rubble toward the surface, Grace's song took on a softer tone. Through our connection, I felt her gentle reminder of something I'd tried not to think about. My sister on Earth. Another family member I'd left behind in my desperate attempt to protect everyone.

The sleeping god might be contained for now, but its laughter still echoed in my memory. And Kagari, for all her reassurances, sometimes looked at me with eyes that held depths I'd never seen in either sister alone.

A sharp pain suddenly lanced through my skull, cutting off Grace's melody and my thoughts of home. The crystalline patterns under my skin flared with warning light, and I stumbled against a broken wall.

"Ken?" Kagari was beside me instantly, her flames dimming with concern. "What is it?"

The pain intensified, and through it I felt something else. A presence, vast and alien, pressing against the boundaries of my consciousness. The sleeping god wasn't as contained as we'd hoped.

The rubble around us began to shift and move, and from deep beneath the tower's foundation came a sound like the world cracking open. The god was rising.

"No," Kagari said, her voice carrying the combined determination of both sisters. "Not while we're still breathing."

Her flames exploded outward in a spectacular display that put her earlier fire to shame. This time, the chromatic fire transcended normal colors. Hues that existed beyond the visible spectrum blazed around her: infrared that felt like the heat of a summer day, ultraviolet that crackled with electric intensity, and colors that my enhanced vision could barely process.

She rose into the air, supported by columns of prismatic flame, her hair streaming behind her like a banner of living fire. The flames surrounded her and became part of her, an expression of unified will that bent reality to match her determination.

"You want to hurt my family?" Kagari's voice echoed with raw power, carrying harmonics that seemed to come from everywhere at once. "Then face what happens when we stop holding back!"

She raised both hands above her head, and the fires began to converge. What started as a swirling vortex of chromatic flame compressed into a sphere of pure, devastating energy. The orb pulsed with every available color spectrum, each hue more intense than anything nature had ever produced.

The god's laughter cut off abruptly as it felt the true scope of what was building above it.

"This is for every life you've threatened," Kagari said, her voice carrying Karin's protective fury. "This is for every innocent you've corrupted," she continued, now echoing Kaguya's calculated justice. "And this is for our family!"

The sphere of chromatic fire had grown to the size of a small sun, its light so intense that it turned the rubble around us to glass. Heat radiated outward in waves that would have vaporized anything without divine protection.

With a sound like reality itself screaming, Kagari hurled the massive orb downward.

The Celestial Incineration Blast tore through the tower's foundation like it was made of paper. Layer after layer of stone, metal, and ancient sealing magic disintegrated before the assault. The god's rising presence met the descending fire, and the collision sent shockwaves that could be felt for miles.

The god's scream of pain and rage shattered windows in the distant city. Its vast form, partially emerged from its prison, writhed as chromatic fire ate through its essence. Each color attacked a different aspect of its being. Red flames consumed its physical manifestation, blue fire froze its temporal manipulations, green flames poisoned its regenerative abilities.

The blast continued downward, boring through the earth itself, carrying the god's essence deeper and deeper until it reached the molten core of the world. There, in temperatures that could melt gods, the sleeping deity was sealed beyond any hope of escape.

Kagari collapsed to her knees, the chromatic fires dimming to barely visible flickers around her exhausted form. The effort had drained both souls that comprised her being, but she smiled with satisfaction as the last echoes of the god's screams faded into silence.

"It's over," she whispered, looking up at me with eyes that held the combined love of two people. "It's finally over."

The tower above us groaned and began to collapse, but somehow I didn't feel afraid. We'd won. The god was sealed, our family was together, and the chromatic flames still dancing weakly around Kagari's hands promised that this was just the beginning of what we could accomplish together.

Grace's triumphant song filled the air as we made our way toward the surface, leaving the defeated god buried beneath miles of glass and flame-scorched stone.

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Blyoof
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