Cold stone bit into Lin Yuan’s cheek, the frozen surface of the obsidian altar smelling of old copper and rotting marrow. "Keep quiet, trash," Elder Lin Hu hissed, his voice cutting through the damp darkness of the cavern. Rough fingers ground Lin Yuan’s face harder into the rock, the pressure so intense he felt his jaw creak. Lin Yuan choked on his own breath, the agonizing weight of his uncle’s boot crushing his shoulder blades and pinning him flat against the sacrificial platform. Burning resentment flared in his chest, hot and suffocating, but his limbs refused to obey. "You should be honored," Lin Hu whispered, his sneer practically audible in the gloom. "Your useless life will finally serve the Lin Clan. Our ancestral guardian has grown hungry, and your weak, crippled soul is the perfect appetizer to soothe its transition into the next rank." Thick, humid air pressed down on the cavern, thick with the stench of sulfur and decay. From the deep abyss behind the altar, a low, rhythmic scraping sound echoed, like metal dragging over jagged glass. Heavy coils, thicker than ancient oak trees, slowly slithered out of the dark, scale by scale. Green fluid sizzled as it dripped from the creature’s maw, landing on the stone steps below and instantly eating through the solid rock with a violent hiss. Lin Yuan struggled, his fingers clawing uselessly at the smooth obsidian, leaving bloody streaks behind. His crippled soul—a withered, cracked core inside his spiritual sea—remained dead and silent, refusing to channel even a single drop of spiritual energy. "Uncle... please..." Lin Yuan gasped, his voice cracking under the suffocating pressure of his uncle's foot. Lin Hu didn't even blink, his eyes cold and devoid of any familial warmth. "Our family does not keep parasites, boy. Your parents are dead, and you are nothing but a drain on our resources. Today, you pay your debt." Slithering closer, the massive head of the Ironfang Viper emerged into the dim torchlight. Acidic fumes burned Lin Yuan’s nostrils, watering his eyes and peeling the skin of his lips. Inside Lin Yuan's chest, his heart hammered like a trapped bird, his mind screaming against the unfairness of it all. Something snapped deep within his consciousness, a sudden, blinding spike of pain that felt like a lightning bolt striking his mind. Glowing red letters suddenly burned directly into his retinas, cutting through the darkness with absolute clarity. --- [System Interface Initializing...] [Detecting host's imminent death. Universal laws bypassed. Bloodline Evolution System has awakened.] [Warning: Host's soul is severely damaged. To complete activation, the system requires a catalyst. Sacrificing one drop of host's heart's blood is required. Do you wish to proceed?] Gasping for breath, Lin Yuan stared at the floating words, his mind reeling from the shock. A sharp, stinging heat bloomed in his chest as his heart squeezed violently, forcing a single drop of glowing, golden-red blood upward through his throat. Crimson light pulsed from his lips, splashing onto the obsidian altar and igniting a complex, glowing array of runes beneath his pinned body. "What tricks are you playing, brat?" Lin Hu growled, stepping back in surprise as the sudden spiritual pressure knocked him off balance. Panic surged through Lin Yuan's veins as the giant viper hissed, its yellow, slitted eyes locking onto the glowing blood with predatory hunger. To survive, he needed a beast pact immediately, but his soul was too damaged to bind with a high-tier creature like the ancestral guardian. Scanning the dark corners of the sacrifice chamber, his desperate gaze swept past the stone pillars, looking for anything alive. Tucked away in a small, iron cage near the waste pile, a tiny, miserable creature shivered. Muddy, matted fur covered its tiny body, its hind leg broken and leaking dark, infected blood onto the straw. It was a common mud rat, a worthless pest used as training fodder for the clan’s youngest children. "Even a rat is better than dying," Lin Yuan snarled internally, pouring every ounce of his remaining spiritual energy toward the cage. Closing his eyes, he projected a thin, fragile thread of his soul, forcing it across the damp stone toward the shivering rodent. A thin thread of golden light snapped into place, linking his shattered mind directly to the frantic, terrified consciousness of the mud rat. Squeaking in terror, the tiny beast stiffened as the forced pact took hold, its black eyes turning a solid, glowing gold. Instantly, the ancestral viper roared, sensing the intrusion of another beast's aura within its sacred feeding grounds. "Die, useless boy!" Lin Hu screamed, realizing something was wrong and drawing a long, silver dagger to finish the job himself. Giant fangs, dripping with steaming acid, lunged downward from the dark ceiling, aiming directly for Lin Yuan's chest. As the Ironfang Viper lunges for his throat, the system screen flashes a violent, blood-red warning: 'Bloodline synthesis initiated. Warning: Mutation will consume 10% of your remaining life force. Do you accept?'

Chapter 1: Sacrifice of the Crippled Soul