I Became a Genius Swordsman in the Pretty Girl Game - Chapter 16

Forget about moving to the other side of the world and starting over.The Apocalypse is here!As the only survivor of the Tutorial Quest in his area, Elijah awakens the Class of “Depraved Hero”, an ominous-sounding Class with a Legendary Rank!Additionally, because of the insane difficulty as well as his Clear Rank, he gains the Skills that, according to the mysterious figure that is the Administrator, he needs most.[You have Developed the Skill “Absolute Authority[A]”.][You have Developed the Skill “Slave Mark[C]”.]

A teenager named Evan Mason was reincarnated into the magical world of Harry Potter and goes to school at Hogwarts!
With only his knowledge of the future and great talent for magic, he takes the path towards the top of the magic world, only to realize that ever step he took, changed everything!

- Description from Novelupdates

Aaron, a wildlife biologist, became a military strategist right after a global war between nations began.He never wanted to participate in the war but he had to, because he wanted to continue his studies on endangered species the moment the war was over, but to his surprise, everyone in his unit were killed, including him, and the next thing he knew, Aaron woke up in the body of a young noble having a similar name to his.However, he also noticed he had awoken in a world different from Earth.In this world, demonic beasts ran rampart with only one thought in mind, causing them to feed on anyone they see, be it humans, elves or even magical beasts as well.During his first encounter with a magical beast, Aaron awakened a system which allowed him to bond with magical beasts and to obtain terrifying abilities from these bloodcurdling magical beasts, so he used his experience as a wildlife biologist to help make it easier for him to bond with these beasts.However, Aaron also noticed he could evolve these beasts if their loyalty towards him had reached a certain level, so he vowed in his heart to grow strong enough to protect those he cared about in this world with the hope of living a happy, peaceful life where he'll be able to focus fully on his passion as a wildlife biologist.

Died a Hero, Reborn as a Demon...

The strongest Hero in the world killed the Demon King, the most powerful demon ever to appear on Earth. He achieved something which no other hero could ever do.

But alas, the Hero never expected his own girlfriend, his own friends, and the organization he trusted to suddenly turn against him and try to kill him.

It was the cruelest blow he was ever dealt in his life.

He still didn’t give up and tried to stand his ground, but they had come prepared, and he was caught unawares in their trap. He fought to his death only to find himself transmigrated into a demon’s body!

But who would have thought that he would be the husband of the Demon Queen!

However, life as the royal consort was not easy at all. So read to find out how he is going to overcome those trying to step on him and finally get his revenge.

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