Valkyrie's Shadow - Chapter 1Birthright: Act 2,

The Hero Age— circa 3113 ad. An age where humans have developed superpowers such as superspeed, superstrength, and every cliche superhero power there is. But not everyone awakened superhero powers.

A tad 1% of the population were unawakened and Satoshi is one of them... or so he thought.

It all started when he wished for a System-like ability in front of a retro computer, which in turn granted it the power of the System. What Satoshi didn't know is that he holds the power to transform/evolve animals and inanimate objects.

How will Satoshi's life evolve after this newfound power? Will he finally be the very best like no one ever was?

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 leader of the thousand demons, the Demon God Chun YeoWoon. Due to an unfortunate accident, he had been sent to the distant future.

Power and desire, money and strength, conscience and responsibility, the road ahead is at a loss, as a time traveler, Simon, where will he go, this is a leading mainstream novel with a relaxed daily life and a slow pace

- Description from novelbuddy