Riaru de Reberu Age Shitara Hobo Chītona Jinsei ni Natta - Chapter 451: White Seven

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates

Harem Dynast is the story of a princess set up in a political marriage with King Lorent, a great conqueror who is often mentioned in the Harem novels.

In a world where the interstellar era has brought both promise and disappointment, Michael Fang dreams of becoming a Lord in the mysterious realm.

He longs to explore ancient ruins of fallen civilizations and build a territory loved and supported by his subjects.
But his aspirations are shattered when he realizes that he is nothing special and just an ordinary boy in a world full of heavenly prodigies.

That is until he stumbles upon the Gate leading to the Origin Expanse, a mysterious realm that promises to change everything he thought he knew about himself and his destiny.

With newfound power and unwavering determination, Michael vows to turn his misfortune into opportunity, no matter how perilous the path is.

"Watch, and witness as I extract everything!"

Follow Michael Fang on his journey through the Origin Expanse as he battles through obstacles and enemies to achieve his dreams and become the Supreme Lord he was always meant to be.

Xiang Ye (Ah Ye) and Charles have the fated arrangement of master and servant. In the depths of darkness, Ah Ye scooped up Charles – a vampire butler. Possessing a fervid passion for service, Charles single-mindedly attends to the secretive young master Ah Ye – regardless of his ferocious appetite, abhorrent taste in clothing, and relationship failings – for the master is always right.

On the other hand, in the chaotic era of scientifically enhanced humans, powerful heroes become the protectors of normal citizens, going where evil needs subduing. This young master may be secretive, but he is our hero.