Immortality System: The Last Human's Transmigration

GRE3D 632 in week [You've died] [Initiating System Activation...] Those were the words that rang in my ears the moment my vision had turned black. But unlike others who were thrown into the same situation as me, I didn’t die. [Immortality System has been activated] I was thrown 300 million years back in time to an era where the weak were preyed on, and the strong ruled with iron fists. An era of magical creatures beyond human understanding. An era of intelligent creatures that could rule over humanity with the power of their stare alone, and ones who could dissipate a hurricane with the snap of their fingers. An era with magic and evolution that would allow me to climb to the top… Thrown into the wild with no one to rely on, I was forced to turn towards the only semblance of hope in this cruel and uncaring world. The only thing that could help me survive this madness. The light at the end of the tunnel for the last human who persisted until the end. The only system worthy for the last survivor, and humanity's final anchor. [Welcome to the Immortality System. A system that makes sure you never die as long as you work for it!]

The Rise Of Calamity

GRE3D 1593 in week Atlas Adler is a pathetic man in his thirties living on a dead-end job where he is looked down on with animosity, a house in the slums, and a ‘family’ that could not give a single shred of care to him. Yet, he had not ended his miserable life yet, a miserable life that had started the day his mother had tragically died from a mysterious illness. He watched his father go on to marry another woman and live happily with her while completely ignoring his existence. He was tortured, mentally broken, and filled with nothing but hatred from the age of 7. Every day he would point the gun to his head to end his misery, yet his finger not to move. However, when he finally pulled the trigger, he found himself opening his eyes once again. This time though, he was in the body of a newborn. He was spawned into a medieval world, a new world where he can start over as just another child with a dream, a new world where can live a perfect life... Yet unbeknownst to him, A small black and Violet flame flickered within his soul, getting larger and waiting patiently for the day it would be set free to devour and destroy everything within its path. Author’s note- Warning! Yes, the mc does become a female when he reincarnates but he still has a sexual preference towards females which is why the novel has the Yuri tag. This is my first novel so please try to overlook and small mistakes. it would be nice for some constructive criticism so that I can improve this novel as well as my skills.