Completed

Gerald Burn. He was a mercenary, a soldier known as 'the devil from hell' and held the 'number one' position in the special forces. His abilities, which were beyond ordinary human capabilities, made him feared by every opponent. Every step he took reeked of death, his presence revered by his comrades. One month ago, he managed to find the family that had been separated from him for twenty-five years. His superiors allowed him to meet his mother for a month, on the condition that he accept a special mission: to single-handedly rescue hostages from a terrorist camp after returning from his family visit. Unfortunately, a tragic fate befell him. He died in a bomb explosion. When he woke up, a system appeared before him. The system explained that he had died and been revived in a new world. However, Gerald refused to accept it because he had just met his mother. The system granted his request. He would return to his original world after completing ten missions. Each mission would reward him with a 'ticket to the afterlife'. Once those tickets to the afterlife were collected, he could open the gates of reincarnation and return to his original world. Unfortunately, as time went on living in the new world, he had many people around him who cared about him. What would Gerald do? If the system's missions were completed, who would he choose? His mother or the people closest to him in the new world?

Humans were living peacefully on Earth for millions and millions of years until the day unknown monsters who called themselves Sulckers, invaded them from beyond space. They were fast, ruthless, and cruel monsters ready to claim earth realm for themselves. Humans were being slaughtered mercilessly by the seconds and civilization came crumbling in the face of the invaders. However, just when humans were on the verge of going extinct and nonexistent, a heaven-sent phenomenon occurred. A small group of humans with awoken special abilities came to light and shared their abilities to the world. Teleportation, fire manipulation, water manipulation, monstrous strength that could move mountains; humans had finally gained the power to fight back. With the combined effort of the small group of humans, the Sulckers were pushed back to their planet, and humanity once again regained control over their planet. Though the battle ended there, the war was not. This war had created many orphans, and among them, Erix had lost everything, even his parents at a tender age. And the only thing he had received from their death was a pale-looking necklace. He was bullied every day at school because of how weak and abilityless he was. However, once the necklace was finally activated, Erix was granted a system, and his whole life was turned around. He completed quest after quest and became more powerful, until one day the system gave him a weird quest he wasn’t sure he could complete. [New quest received] [Control your uncontrollable thirst for human blood. Abstain from human blood, but during this time your HP would keep decreasing by -1HP/1 hour. Quest will be marked complete once you have lost all your HP]

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.*