Naruto System in One Piece - Chapter 225

Ye Xiao was a superior cultivator in his previous life. The three factions of the realm kill millions of people every time they attempt to seize cultivation resources. Wealthy towns turn to wastelands in just a single night. They cover up their crime with an assertion that the towns were suffering from pestilence and disasters.

They forcibly hold all the resources for cultivation, monopolize all valuable practice materials, and keep outsiders from cultivating so that only their three factions could cultivate in the realm. Ye Xiao declared war against the three factions in retaliation for their actions. He fought alone and ended up dying in vain. However, he is reborn into the mortal body of a 16-year-old boy. He will use the powers he cultivated in his last life and slaughter his way back into the Realm. The story begins!

- Description from Novelupdates

A spin-off of Lillia and Treize, Meg and Seron is a high school adventure/mystery/romance/comedy of sorts taking place in the rough equivalent of the 1950s. The story follows Seron, a stoic and handsome bookworm who is in love with his classmate–a sweet, oblivious transfer student named Meg.

Meg and Seron takes place at around the same time as Lillia and Treize, but knowledge of the main series is not necessary to read Meg and Seron.

Orodan was an orphaned street rat who clawed his way to the county militia with hard work. However calamitous events unfold and draw him into events bigger than himself and Orodan's battle-loving disposition leads to a warrior's death for him. Only for him to wake up again on the day of.In a world of skills, titles and blessings; a smart time looper would perhaps scheme, plan, amass equipment and allies. But not Orodan. If there's one thing he's good at it's stubbornly trying the same thing over and over again via brute force till it's done.If a wall is in front, going around is not an option. Instead batter it with your head thousands of times till either the wall breaks or you do. And gain skill levels along the way