Naze Boku no Sekai wo Dare mo Oboeteinainoka? - Volume 3 Chapter 1

The grand master of Shape-Will Fist, Ning Wufeng, was brought to the Divine Land Continent by a mysterious scroll. In this world, he was an abandoned child and appointed by his family as inferior leader of a small fishing village because he was unable to open up his Spirits Aperture and begin his cultivation.

However, he seemed destined to open up his abandoned with the memories of previous life integrating into his mind. And the scroll guided Ning Wufeng into a vast mysterious hidden world where he was bestowed divine weapons and acquired supreme skills of cultivation.

Deafening thunder indicated the immense changes in the movement of winds and clouds. In a world where people worshiped martial arts, how could the teenage loser be the master of his own destiny? How could he wield his power to control the world, making gods and demons tremble with fear?

- Description from Novelupdates

The little security guard, Qin Yu, was chosen by a glamorous and wealthy CEO to become her personal bodyguard. Little did he know, this glamorous and wealthy CEO had a double identity, and was actually his wife from a flash marriage a year ago, registered and all. Neither of them recognized the other, but as they lived together day and night, one awkward situation followed another. They had become the most familiar pair of stranger spouses!

Zavier met Cosmic Consciousness after his death. He was satisfied with every system that Cosmic Consciousness exhibited, so he wanted all of them. Surprisingly, the Cosmic Consciousness obliged him.

Zavier was reborn in an isekai full of magic and alchemy. Now, he had many routes to upgrade. Interestingly, to coordinate these systems, Cosmic Consciousness gave him the gift of being able to duplicate himself. He could clone a finite number of himself to manipulate these systems.

Magus, Alchemist, Mesmer, Tamer, Hunter, Vampire, Werewolf, Dragonknight, Necromancer.....

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By the way, it wouldn't appear NTR or some bullshit harem of courtships. MC of course will have harem but not for cliches.

The Adrasia empire on the Vogel continent. There is a battle over the throne of such an empire that possesses powerful military and vast territory.With the successor undecided, the children of the emperor are vying to expand their power. However, there was one prince that everyone says will definitely not become the emperor.The seventh prince, Arnold Lakes Adler. The young man who was inferior to his younger twin brother in every way, the dull prince.Incompetent and lethargic, Arnold wastes everyday just playing around. However, behind the scenes, he is one of the only five SS-Class adventurers called ‘Silver’.Seeing the intensifying battle for the throne he decided “I don’t want to die so let’s have my little brother become the emperor…”This is the tale of absurd secret manoeuvres of the prince who is uninterested in the title of the emperor.