One Piece: I'm Destined to Be the Son-in-Law King! - Chapter 3: Strive, Strive Harder

Dying in a tragic accident Marcus Ferrous gets transferred to a fantasy world of monsters and magic, except when he arrives contrary to what he expected he is now level one and a ghost. Left with nothing on a strange new world, Marcus will struggle with everything he has on his journey to get stronger and uncover the secrets of his new world.

At the genesis of the world, the ‘Dark God Entropy’ was defeated in the fight between the five other Gods, and was sealed.

On this land of real souls, with millions of different martial art institutions, there are so many strong fighters just like the trees in the forests.

Among all, a mediocre apprentice from one of the mediocre institutions suddenly became a martial art genius after a mysterious incident. Not only did he acquire a photographic memory and keen perception, but he had also come to discover that his ability to comprehend martial arts is astronomically good, which eventually made him an almost godly existence.

From the hot-blooded intense battles to the clashes between the top geniuses, Martial Arts is no longer limited to the mortal world, it reaches to a level that can do everything from controlling the oceans to flying up the sky and diving under the ground.

- Description from Novelupdates

At eighteen, her mother died in a car accident, leaving her all alone in the world. One day, her kindness in rescuing someone led to a life-changing transformation.She was provided with food and accommodation, and someone even arranged for “360-degree personal protection” for her!Just when she thought she had picked up a pie from the sky, she was tied up and sent to a training camp, embarking on a tough yet passionate new journey.Bully her? With Taekwondo, she'll beat you until you can't tell north from south!Compete with her in sniping? Rookies, step aside, she's challenging the strongest sniper!Doubt her hacking skills? Come on, sister will show you what playing with computers is all about!She stood out in the camp with high profile, top in every category, who would dare compete against her?Back home, the little overlord turned into a docile rabbit, utterly bewitching someone!Unable to endure it any longer, he dragged the little overlord to the civil affairs office and registered their marriage.At night, he returned home, and righteously set about 'educating' her!