Naruto System in One Piece - Chapter 71

After her rebirth, Yun Shifei returned to her fifteen-year-old self, just when she became the true daughter of a wealthy family.The well-behaved and timid Shi Fei only wanted to live her own small life well.Who knew she would get involved with the Great Demon King.In her memory, this big shot was extremely ruthless, squandering the family fortune, watching his brother die coldly, and sending his father to prison.But now, the big shot is quiet, obedient, easy to bully, and loves sticking to her.Yun Shifei's heart softened, and she tried hard to protect him.Yet one day, the little poor thing she sheltered pulled her into his arms to kiss her.She was utterly shocked.He looked innocent and said: 'I heard this is a way to express liking. Don't you like me?'That's what it means, but why does something feel off?!

After getting shot, Lucas, a serial killer, reincarnated into the novel world as a tragic villain with the same name, Lucas Ciffer.

Lucas Ciffer was supposed to be the Holy Kingdom's successor to the throne, but his demonic appearance and the powers he possessed terrified the entire kingdom. A white-haired boy with red eyes and pale skin, together with his dark powers, got persecuted and exiled by his own family. Not to mention that in the future he was destined to die by the hand of the hero.

Lucas fell from holiness, and, with the serial killer's bloodlust and knowledge of the future, he decided to prove the world right.

Yes. I could be a villain; no, in fact, I WILL BE THE VILLAIN.

Ji Qingzhou was anthropophobic and foolish. She had no redeeming qualities, except for her face.

Once she transmigrated, she was bound to a Guide System to save the world. She was tasked with capturing Shen Rongyu, the sinister, beautiful, mighty, gloomy villain and Great Shixiong of Xuanyun Sect, and to prevent him from destroying the immortal cultivation world in the future.

Can Ji Qingzhou, who had been single for 20 years, learn how to capture a villain?

Of course not.

She started off terribly, and muddled through the tasks that the system issued.

- Description from Novelupdates

This is the tale of an earthling, who transmigrated as a dying third-rate god but somehow rose through the ranks, gaining followers and eventually causing the Fourth Great Apocalypse.