Naruto System in One Piece - Chapter 27

The world’s top level hacker, Shi Lei; due to him hacking the world’s top military powers during a joint exercise and attempting to steal information from them, ultimately leads him to get sold out by his own organization. This act eventually caused his own death by a missile bombardment.

God was playing a joke on him and allowed him to return back to six years ago, the autumn season of when he was still at his university. Being given another chance, plus the fact that he retained his ability as one of the best in hacking technology, Shi Lei decided to change his life! During his previous life, he was only an assassin in the dark. Although such an existence made people afraid of him, he would have to always hide within the shadows. In his new life, not only does he want to be an assassin in the dark, he also wants to stand openly in the middle of the world stage. Creating a world-class super enterprise, he will single handy change the whole world!

- Description from Novelupdates

Shen Ran transmigrates to a fantasy world and becomes a disciple of the Empyrean Sword Sect. Problem is, everything about him is ordinary— ordinary talent, ordinary temperament, ordinary life… In this cruel world where cultivation talent determines how far one could go, this means that Shen Ran’s future can be seen at a glance. Banished to the servant quarters as a servant disciple, his daily grind is to attend to mundane chores which will go on until he dies of old age a hundred years later.

Then he comes across a narrative modification system which makes it possible to rewrite entire lives! An avid reader of online novels in his previous life, Shen Ran relishes the chance to read the narratives of everyone and everything and alter them. The narratives modified by him will become reality!

This is the story of how he transforms his ordinary life by editing his narrative and going on to cultivate the Dao, handle calamities, and rule the ages. And he is limited only by his imagination!

Tan Shuchang had always considered himself born into a scholarly family and had also been a young star atop the honor roll, a true parasite of the upper class. He should have been holding significant local authority, receiving endless gifts, spending boundless money, enjoying innumerable years, and marrying countless concubines. How had he ended up becoming a demonic cultivator? After pondering for a long time and still not understanding, he slowly emerged from the pool of blood, deciding to think it over gradually…

“Ah, Young Master, Cassius?...I'm afraid you'll be dissapointed to hear that he's not available at the moment as he's 'attending' to his adopted mother in her room.”Cassius's lovely maid, Isabelle said in a fluster while she heard lewd sounds escape from her Mistress's room.“No, I'm sorry to say that you can't meet Young Master today, since he's 'helping out' his sister-in-law with some 'favours' in her garden.” The innocent Isabelle excused herself as she witnessed her lady's flower being picked, instead of the rest of the flowers in the garden.“I hate to say this sir but Young Master, Cassius is currently guiding Miss Knight in the 'ways of the sword', so you can probably only meet him tomorrow.” Isabelle once again blocked the guests from entering, knowing that the sword her Young Master was handling could penetrate a body, but could never wound one.“I apologise once again as Young Master is at the Capital right now teaching a class to the female students in the Academy.” Isabelle said with her cheeks flushed, already knowing that her master was taking a very 'practical' lesson about human reproduction with the girls in his class.“Oh my! The King wants to meet the Young Master?...Well I guess he'll have to wait since Young Master, Cassius has gone clothes shopping with the Queen.” Isabelle lied to the King himself, knowing that her Young Master wasn't shopping for clothes and was actually removing the royal clothes off the Mother of the Country.Excuses...Excuses...The loyal maid, Isabelle had no choice but to make excuses for her Young Master, who was the most talked about and hated noble on the Continent because of his depraved escapades with all sorts of woman ranging from his own Family to Royalty itself and his Tyranical rule over his estate.And to think that not too long ago he was considered a wastrel noble, who was going to drink himself to death one day....When did it all begin she wondered as she excitedly walked into his room to get the reward she deserved for being such a loyal made, while someone else made excuses for her this time.•°•°•°•°•°•°•°•°•°•°•°•°•[No NTR - No Yuri - No sharing - No system that assists the protagonist - No mind control - No drugs or potions that influence the girls - No unnecessary Drama - Incest - Harem - Hardcore Netori - Slice of Life Romance - Demigirls - Elves - Vampires - Beast Girls - Slaves - Royalty - Finally a very competent protagonist]