Leonhart dropped to his knees, his hands hovering over Seraphina's bleeding, broken frame. His golden eyes were frantic, wide with panic. "Kairo! Why aren't you healing her?! You have the system's restoration pathways! Use them!"
Kairo blinked, his tear-stained face freezing as the logical nodes in his brain suddenly snapped back online. "Oh... yeah. I completely forgot."
He extended his palms over her chest. A dense, brilliant emerald light erupted from his hands, channeling directly into her ruptured organs. The deep, jagged lacerations across her torso began to knit together, the internal bleeding stemming instantly under the overwhelming pressure of his high-tier restoration mana.
Sera's ragged breathing stabilized, though her eyes remained tightly shut as she slipped from the brink of death into a deep, vegetative unconsciousness.
Leonhart stood up slowly, his fists clenched so hard his knuckles turned stark white. His teeth gritted with an absolute, predatory rage as he stared down the dark, smoking chasm of the secret passage. "Those bastards... I will hunt every single one of them down. I will kill them all!"
"You don't have to," Kairo said, his voice dropping into a flat, chillingly vacant register.
He hadn't even looked up from Sera's body. But five meters away, the rubble of the secret passage violently shifted. The corpses of twelve elite inquisitors suddenly rolled out from the shadows. Their throats were cleanly slit, their chests impaled by jagged, crystalline spikes of hardened clay.
Leonhart staggered back, a cold sweat breaking across his neck. "Wait... Kairo, you... you already killed all the assassins? So you actually knew they were waiting inside the passage the entire time?!"
Tears were still streaming down Kairo's moon-lit face, his small twelve-year-old frame trembling with an volatile mix of guilt and cold calculations. "No! I didn't know they were enemies! I thought she was actively setting us up for an ambush! I deployed the traps to kill her forces, not them!"
Sera's eyelids fluttered, opening just a fraction as the residual warmth of Kairo's healing magic anchored her consciousness. She looked up at his frantic, weeping face, her voice a faint, barely audible whisper. "Kairo... it's fine. Don't... don't do this to yourself..."
Leonhart bit his lip, his eyes swelling with tears at her unyielding mercy.
Kairo suddenly went entirely rigid. He wiped the tears from his eyes with the back of his bloody sleeve, his expression completely flatlining into stone. He stood up slowly, reaching down to unsheath his short, pristine steel blade. He raised the weapon high, pointing the tip directly toward the pale, sparkling moon above the ruined bridge.
"I will follow every single step of your plan, Sera," Kairo declared, his voice echoing with a dark, unshakeable resonance. "Just wait and watch. I am deeply sorry for mistrusting you."
Sera offered one final, peaceful smile, her heavy eyelids closing slowly as she surrendered to the exhaustion.
The very next microsecond, Kairo swiveled the blade downward.
SLASH! SLASH!
With two blindingly fast, hyper-precise arcs of cold steel, Kairo cleanly severed both of Seraphina's legs at the knee. Blood splattered violently across the wet cobblestones.
"WHAT THE HELL ARE YOU DOING?!" Leonhart bellowed, his voice cracking in absolute, horrified betrayal. He lunged forward to tackle Kairo away from her body.
Sera's eyes snapped open, her features contorting into a horrific mask of pure agony as her nervous system registered the mutilation. She opened her jaw to let out a piercing, blood-curdling scream—but before a single note of sound could escape her throat, Kairo thrust his left hand forward. A thick, suffocating layer of his dense mud magic surged upward, completely encasing her mouth and jaw in a solid, unyielding clamp of wet clay, stifling her voice into a muffled whimpering.
Leonhart froze mid-stride, his chest heaving as he stared at the bleeding stumps, his mind completely short-circuiting. "No way... No way. Was she... was she actually lying to us the entire time?!"
Kairo didn't look at him. He calmly wiped the fresh blood off the flat of his blade, his moon-lit face radiating a terrifying, absolute genius.
"See, Sera?" Kairo whispered down to the muffled, squirming girl, his voice chillingly smooth. "This is exactly what true structural trust looks like. Look at Leonhart. He knows me better than anyone in this world. And the reason he didn't instantly drive his dagger through my throat the second I tore your legs apart is incredibly simple—it's because he knows for a fact that my sword never cuts innocent people."
Leonhart rubbed his temples, his warrior instincts struggling to bridge the gap between Kairo's cruelty and his logic. "Hey, genius... step out of your head for five seconds and explain to me exactly what the hell just happened."
Kairo exhaled a long, sharp breath, his analytical shell returning at maximum capacity. "While she was unconscious, my sub-level mud clones finally finished compiling the structural diagnostics of her anatomy. I checked her energy pathways. This girl isn't a victim of the regime, nor is she a rogue princess trying to help us burn it down."
He bent down, effortlessly hoisting Sera's mutilated, clay-masked body over his shoulder while her bleeding lower limbs remained on the stones.
"She is the living core of the territory's network," Kairo explained, his eyes flashing with a cold brilliance. "Every single tracking array, every Desire Spark node, and every elite assassin's sensory skill in this city is directly tethered to her biological frame. Her legs weren't flesh, Leonhart—they were the physical anchor points connecting her to the deep bedrock of the capital's grid. By severing them, I didn't kill her. I completely isolated her from the empire's source code."
Before Leonhart could even process the weight of the revelation, Kairo slammed his boot into the cobblestones beneath them.
CRACK.
The solid stone instantly liquefied into a deep, vertical pit. Kairo, carrying the bound girl, plummeted straight down into the darkness of the earth, with Leonhart diving in right behind him. The ground above them instantly snapped shut, sealing the street as if they had never existed.
Ten minutes later, the heavy, metallic clanking of elite reinforcements echoed across the ruined bridge. A massive detachment of inner-district guards surrounded the area, their weapons drawn, their faces pale with frantic confusion.
"Where are the targets?!" the vanguard commander roared, tracking the empty alleyways. "Why isn't there a single trace of their assassin signatures here? Where is Lady Seraphina?!"
Walking out from the rear of the formation was Sera's older sister—the elite civilian girl from the crystal lake. Her flawless, symmetric face was completely twisted in horror as she spotted the two severed, bleeding legs resting beneath the rubble of the archway.
"They escaped..." she whispered, her voice trembling violently as she dropped her staff. "They used high-density mud magic to mask their descent... and it is entirely my fault. I was a fool. I only informed the high court about their physical assassin skills... I didn't calculate the scale of his earth manipulation..."
Suddenly, her breath caught sharply in her throat. She clutched her chest, her eyes widening into pinpricks as she violently coughed up a thick spray of dark crimson blood onto the stones.
"My lady?!" the vanguard commander gasped, stepping forward to catch her.
But before his hand could touch her armor, the commander's own eyes rolled back into his head. He convulsed violently, dropping to his knees as blood erupted from his mouth and ears. Across the entire sector, every single elite soldier and tracking officer in the division began to stumble, clutching their temples as their internal mana channels violently ruptured.
"We were... we were all systematically connected to her..." the sister choked out, falling flat onto the bloody cobblestones as the lights of the distant towers began to rapidly flicker and die. "Our entire source of power... is gone."
Deep within the subterranean tunnels, heading straight toward the central castle, Kairo kept his stride steady in the dark, the true siege of the Land of Lust finally underway.
Above the dark fissures of the ruined bridge, the air grew violently thin. Sera's older sister, her chest heaving as she spat dark blood onto the stones, forced her gaze toward the ruptured earth. Her spiritual senses, though fading rapidly as her mana channels unraveled, locked onto a faint, shifting seismic frequency dragging downward toward the tectonic plates.
"His current location is—" she screamed, her voice echoing sharply against the crumbling granite walls. "He is moving straight through the southern—"
Before the coordinate could leave her lips, the fractured cobblestones beneath her knees violently liquefied. Two massive, grotesque hands constructed from cold, dense subterranean mud shot out from the bedrock, wrapping around her shins like iron shackles. With a sickening, fluid momentum, the hands dragged her downward.
"Help me!" she shrieked, her fingers clawing frantically at the stone edge as she sank up to her waist.
The remaining weakened soldiers, their armor clanking heavily as they stumbled over their own trembling legs, lunged forward to grasp her arms. But the downward suction was absolute. The mud closed over her shoulders, her neck, and finally her screaming face, dragging her deep into the crushing, pressurized darkness of the mantle. By the time the soldiers managed to crack the stone open with their weapons, the lack of oxygen had already terminated her vital functions. She had suffocated within the dense, unyielding earth.
Hours later, the grim report bypassed every security tier, reaching the highest throne room of the inner palace.
The King, a man whose very presence usually commanded the absolute obedience of thousands, froze as the parchment dropped from his trembling fingers. His knees gave out, his royal robes pooling around him as he collapsed directly onto the polished marble floor. "No way... My only two daughters... they are both dead?"
Beside the throne, the Queen of the Land of Lust let out a raw, uncoordinated wail, her hands tearing at her lace collar as she began to cry uncontrollably, her grief echoing through the grand, vacant halls. The core foundation of their bloodline had been systematically severed in a single night.
Three hours of continuous, high-speed subterranean traversal followed. Above their heads, the entire kingdom had gone completely wild—patrol sirens wailed through every district, and battalions of ordinary knights marched erratically through the streets, blind and deaf without their central tracking network.
On Kairo's shoulder, Seraphina was sobbing wildly, her muffled, clay-masked face trembling violently against his civilian tunic as the physical trauma and the sudden isolation from the grid took their toll.
Finally, Kairo skidded to a halt, his mud channels parting to reveal a massive, heavily reinforced underground bunker. It was the hidden sanctuary where the escaped children of the experiments had been gathering.
Leonhart dropped his heavy pack, leaning his back against the damp dirt wall as he panted heavily, his golden eyes filled with deep exhaustion and confusion. "Where are we going, Kairo? I don't understand what we're even trying to achieve anymore... Kairo, what are we even doing?"
Kairo didn't answer right away. He looked across the dim, lantern-lit cavern, observing dozens of pale, scarred children watching them from the shadows. With a cold, unceremonious movement, he threw Seraphina off his shoulder, letting her slide across the dirt floor toward the center of the room.
"Leonhart, don't worry," Kairo said smoothly, dusting off his sleeves as his analytical shell remained perfectly level. "Let's just relax here for a while. Now that their central command structure is weak, we can actually take a breath."
With a desperate, convulsive heave, Seraphina managed to use her residual mana to violently spit the hardened mud clamp out of her mouth, her breathing ragged as she glided her gaze down to her bleeding, severed knees. "You absolute monster!" she screamed, her voice cracking with pure, unadulterated terror. "Heal my legs! I beg you... just heal them!"
Kairo looked down at her, his expression entirely vacant. "I was kind enough to heal your life support pathways earlier. And now you're indirectly asking me to restore your entire physical architecture? Don't push your parameters."
Sera gritted her teeth, trying to reclaim her defensive composure despite her agony. "About that entire structural theory you spouted back on the bridge... about how separating me from the bedrock would destroy the network... it's nothing but a calculated lie! You don't know anything!"
Kairo let out a long, slow sigh. He reached into his spatial storage ring and quietly pulled out a heavy, blood-soaked object, dropping it onto the dirt directly in front of her face.
It was her older sister's severed head, her eyes still frozen in that final, suffocating panic.
Sera's voice tore out of her throat in a piercing, horrific shriek. "MY OLDER SISTER!!"
Kairo exhaled flatly. He tapped his boot against the ground, causing the earth to instantly rise like a small wave, engulfing the head and burying it permanently beneath the bunker's floorboards.
"You... you absolute monster..." Seraphina whispered, her chest heaving as she stared at him with wide, trembling eyes. "How did you even manage to kill someone that strong? She was a high-tier master of the inner circle!"
"You think magic was my only weapon in this field?" Kairo asked, his voice dropping into that dangerously calm, academic tone. "No. I use advanced medical knowledge too. And furthermore, I knew from the very beginning that you were intentionally guiding us toward those inquisitor traps. So, I systematically sent my mud clones directly into those coordinates ahead of us. The moment your strike teams destroyed my clones, they triggered a hidden chemical payload. I had surrounded the inner cores of those constructs with highly concentrated air poisoning."
Seraphina's face drained of what little color it had left. "No way... You polluted the air columns? Won't that toxic gas travel through the ventilation shafts and kill innocent people in the lower districts?!"
Kairo exhaled, his bright, moon-lit eyes scanning the rows of scarred children sitting in the shadows. "Well... no one is innocent here. Am I right, kids?"
From the dark corners of the bunker, a young boy with deep alchemical burns across his arms nodded slowly. "Yeah. Those so-called ordinary citizens... even though they saw us suffering in the transport wagons every single day, they just turned their heads and let us die."
Beside him, another young girl stood up, her fists clenched tightly as tears welled in her eyes. "Those people... even though the guards killed my older sister right in the middle of the market square, the crowd just stood there making fun of the man they had killed, and then they just forgot about it the next morning."
A third child, a small girl with fractured mana pathways, whispered from the back, "Not only that... the common merchants buy us from the slave pens, using our life force to perform minor magic just to improve their own personal mana reserves. They're all part of the machine."
Kairo turned his head back toward Seraphina, his expression hardening into stone. "So, Seraphina... you simply messed with the absolute wrong person."