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When pharmaceutical genius Dr. Alex Chen dies in a lab explosion, he awakens in the body of Xiao Feng—the "useless" third young master of a declining cultivation family. Crippled meridians, endless humiliation, and a legacy of betrayal await him in the ruthless world of immortal cultivation. But Alex brings something no cultivator has ever possessed: modern scientific knowledge that transforms ancient alchemy into an unstoppable force. Bound to the mysterious **Revenge System**, he's compelled to settle every grudge from his host body's tormented past. Each completed mission unlocks devastating alchemical formulas and forbidden techniques. Where others see mystical pill recipes, Alex sees molecular structures. Where masters take decades to master basics, he revolutionizes millennia-old practices overnight. **"Impossible! How can a cripple create Heaven-grade pills?"** From the scheming cousin who sold him out, to the corrupt elder who murdered his friend, to the demonic lord who destroyed his family—every enemy will face his calculated wrath. But as Alex climbs from the sect's bottom to the realm's peak, he discovers the System's true purpose isn't justice. It's harvesting. Armed with explosive compounds disguised as cultivation pills, poison antidotes that shouldn't exist, and breakthrough elixirs that shatter natural limits, Alex must master both revenge and romance. The brilliant Mei Ling captures his heart, but can he trust her when everyone has hidden agendas? **In a world where strength determines everything, the strongest weapon isn't a sword—it's science.** Will Alex break free from the System's control and forge his own destiny, or will his pursuit of revenge consume everything he's fighting to protect? *Power. Revenge. Redemption. The formula for immortality has never been deadlier.*

"They called me trash. They called me a sacrifice. Now, I will call myself their God." In his earlier days, Kael led elite troops - fierce, unshakable till the very last breath. Yet that devotion got twisted into deceit. His own bosses handed him over; missiles tore through him while rage roared inside his chest. Yet dying wasn’t the finish. Kael wakes up inside Kaelen Vance - once the shamed third heir of a top martial bloodline. Out here, power rules; Kaelen had none - he couldn’t channel energy at all. His siblings tormented him nonstop until his cousin killed him just to steal his birthright. One heart, tied by a twist of deceit - yet both walking the same path. A bond broken before it even began. Right when Kael gets ready to battle his way free from hell, a robotic voice echoes inside his head - Welcome, Host - the God-Slayer System just powered up Using the System, Kaelan’s weak body changes fast - suddenly strong. The Ancient Dragon Body awakens, making stuck energy paths pump raw strength nonstop. Now he spots enemy details at a glance, grabs epic skills almost instantly. Killing foes pushes him higher, each battle adding power bit by bit. The family that turned their back on him? They’ll bow down. His cousin - the one who ended his life? Blood will answer for it. As for the so-called gods running everything? They’re marked now. Starting from the bottom world up to the top god realms, Kaelen moves forward - cold, focused. Survival isn't enough; instead, he takes control by force. This isn't about some brave savior fixing everything. Nah, this one’s about a ruler who just claimed it all instead.