Vampire Overlord System in the Apocalypse - Chapter 2: Become my Power!

Liu Yan, an ordinary office worker from Earth, unexpectedly traveled to a strange world.

The heroes of the ages are on the side, embarking on a journey to conquer the heavens.

- Description from novelbuddy

She, a modern hidden ghost leader of an organization which gathered insane prodigies proficient in the various differing skill-sets. Highly skilled in medicine and poison, executes covert assassinations, viewed as insane and demonic in the eyes of people of the world. Killed in an accident, and reborn into the body of a disfigured young girl.

What? Face disfigured, identity stolen? A return to the family dim and hopeless? Her identity can be given up, her family can be forgone, but as for the one who harmed her predecessor who inhabited this same body, if she didn’t at least make them scream in unimaginable agony and throw them into a state of wretchedness, how could she live up to her demonic reputation? Endless turmoil ensues and it’s a battle to dominate over all! See how she shook the world dressed in a suit of red, her sword up against the dominant powers that rocked the Heavens! Her name spread across the seas, shocking the earth!

- Description from Novelupdates

The strong are lonesome. Overcoming the loneliness pushes you to stand invincible at the top.

Pro-disciple of the Shaolin Temple on earth, Huang Xiaolong was reborn into a Martial Spirit world, carrying Hua Xia’s secret knowledge, the Body Metamorphose Scripture. In a Martial Spirit world, only those with Martial Spirit are able to train in battle qi and become a warrior. Huang Xiaolong born with a heaven-defying rare Martial Spirit was mistakenly taken for common variant Martial Spirit during the awakening ceremony conducted by the tribe and thus sidelined. However, Huang Xiaolong with his common “variant” Martial Spirit again, and again displayed unnatural talent, defeating geniuses, shocking the clan and the entire Martial Spirit World

One of the seven strongest people on the continent, the King of Mercenaries. He started a war to avenge his fallen family and destroyed territory but failed and lost his life. However… “Wow, I’m alive?” I returned to the past, back through time. A perfect opportunity to right my regrets and reverse everything. It doesn’t matter if people around me point fingers, calling me a scoundrel, or dismiss me as tr*sh. Because… “I’ve got a plan.” “What plan?” “A plan to destroy everything.” There won’t be a second failure. This time, I’ll wipe out all my enemies. …But first, I need to rebuild this damn estate.