One Piece: I'm Destined to Be the Son-in-Law King! - Chapter 21: Sudden Pirate Incident

This is the story of a young man who was reincarnated as a dragon with a near-insatiable curiosity. Initially sparked by questioning his own reincarnation, he quickly gets lost in the endless world of magic, using his deep understanding of advanced sciences to learn the laws and properties of a new type of energy known as mana.However, soon enough, the table would flip, and he would begin using that very same energy to expand his knowledge of science, to the point that he would begin questioning his own understanding of the world.Although not his original intention, with the combination of his intelligence, expanding curiosity, and the 'miracles' that occurred to allow for his existence, he quickly found himself climbing the mountain of strength as if it were a small hill before eventually climbing to a point where it seemed as if he himself was the peak itself.Even if.. that was never the case...There is mild gore, and profanity is 'censored' toward the beginning, but not later in the story.

“Missus, time to fulfil your duties!” Mu Yuchen demanded as he pulled Xi Xiaye closer with his arms intimately wrapped around her waist.

It was a meticulously planned feast for the powerful. Her fiancé had knelt down on one knee and proposed to her sister instead. Robbed of her right to her inheritance, she was prepared for the Xi family to throw her to the wolves.
As she slipped away from her family that had turned their backs on her, she found him — Mu Yuchen, the low-profile and reserved noble that ruled City Z and led Glory World Corporation.

“Mu Yuchen, let’s get married!” He looked up at her, then suddenly stood up.

“Where are you going?”

“Let’s go. Any later and the civil affairs bureau will be closed.”

- Description from Novelupdates

Battle Emperor Fu Sheng is the most popular player in the game, The New Age. Everyone believes that only he will become the champion in the final battle! His real name—Lin Jie. The reason for his participation in the battle is to win the Capsule of Revitalization for his injured mother and sister. With the Broken Blade, a Heritage weapon, in hand, he finally makes it to the final battle! Only then does he realize that his best friend had betrayed him! After his devastating defeat, Lin Jie is shocked to realize that he had time-travelled all the way back to a few years ago when the beta version of The New Age was just about to launch!

With all my knowledge of the game…
Pros on the leaderboard? All of them my underlings!
First kill of a BOSS? Mine!
First clear of the exclusive dungeon? Still mine!

Whatever I lost in the past, I’ll get them all back!
Whoever brought me trouble, you’re as good as dead!
When I have the chance to do it all over again, I WILL BE EMPEROR!

I am Fu Sheng, the STRONGEST warrior in The New Age. No one, absolutely no one, can stand before me!

- Description from Novelupdates

Tricked by a soothsaying mother, during the ghost year, ghost month, ghost day, and the wide-open Ghost Gate, I sneaked into the deep mountains with a Zhang Family heirloom, the Star Stealing Life-changing Talisman.By a mix-up of Yin and Yang, a devastatingly beautiful thousand-year-old female corpse absorbed some of my life force, and she awakened...Kids over 12, please watch this book together with the little buddy on your back, and don't block his view! (Note: don't turn back now, because he has also seen this text!)