Naruto System in One Piece - Chapter 524

On one dark night in Tokyo, japanInside an abandoned factory…Shizuka Marikawa, a working woman was returning from her work but ran into an unfortunate situation where she almost lost something more precious than her own life but got saved at the last second by someoneShe couldn't help but look at the boy in front of her with wide-opened eyes as she was too stunned to speakAll she could do was stare at a boy with white hair soaked in blood as Around him was nothing but corpses of humans he just killedAnd From this instant, she instantly knew the boy was not human at all because, unlike humans, he had one red eye as he had some weird things coming from his back which he used to pierce through human chests with ease‘monster’ Shizuka Inwardly said this as this was the only answer to her questions even though she said this but she somehow also knew he wouldn't harmShizuka is someone who has always been able to read the intentions of other people from their faces due to events that keep happening in her life which is the reason can tell this boy or a monster moreover she found nothing in his eyes but sadness and painMaking him very pitiful in her eyes, since even though he himself is in so much pain and sadness and even then he is saving herIn her eyes, He is not only Pitiful but also very kind“Please come with me!” Shizuka blurted it out unconsciously even though she had no idea what she was saying because she said it instinctivelyOr maybe she knew? She just knows she can't leave him alone otherwise this boy will be all alone as she decided to take him with HerThe boy couldn't help but look at the woman with a cold graze even though it seemed cold but inside he was very confused as he was even considering a woman's mental healthUnknowingly at this moment, the boy made a bond that he never imagined in his entire lifeUnfortunately for them, his and Shizuka's lives will be totally flipped upside down soon due to unseen events..…

The servant looked at the grieving princess. “Your Highness, the Regent Prince sent your scholar fiancé to the Western Butcher’s daughter!” 

The princess gritted her teeth, speaking to her servant that it matters not as she has other suitors in line. Many days later, much to her dismay, the servant ran in a hurry. “Your Highness, the Regent Prince expressed his intention of becoming your suitor! All other men in line were sold to Gou Lan Red District!”

The princess was distressed. She said to her servant it matters not. She’ll soon be married to Prince Fuma. Then the uneventful came. The servant once more ran to her, almost tripping in the process. “Your Highness, Prince Fuma was imprisoned at home! Meanwhile, there’s a red sedan chair waiting at your residence for your marriage! It was led by the Regent Prince!

The princess was stunned. For a day such as this to come, it seemed impossible. This nothing but a sad story of a female boss crossing back in time to hold the thick thighs of the big boss. But while raising him, she was eaten in the process.

- Description from Novelupdates

The story follows Danheng, who transmigrates to the Douluo Continent seeking a peaceful life, only to be persistently pursued by Gu Yuena, who insists on becoming his wife. She encourages him to strive for greatness, aiming for him to become the leader of soul beasts, the Dragon God, and the ruler of the Divine Realm. Despite his desire for a quiet life as a librarian, Danheng finds himself entangled in various challenges due to his wife's ambitions.

Protagonist travels between different anime worlds to right wrongs and uncover his reason for being along the way.

- Description from Novelupdates