Naruto System in One Piece - Chapter 496

Demons are rampant, and monks regard strangeness as the way of heaven.

If a mortal wants to practice cultivation, he must dig out his eyes, cut off his limbs, and cut off the root of wisdom…

Ren Qing, who came through the journey, found that by virtue of his supernatural powers, he could be exempted from the cost of cultivation.

[No-eye method]: Through swallowing the eyes, one hundred and six immortal eyes grow all over the body.

【Poison Bone Technique】: Soak your own bones in poisonous water for thirty-six days, then re-implant them in your body, and train them to the point where no grass grows.

[Sutra of the Dead]: Seal Laogong, Yongquan, Shenmen, and Yintang points with rivets, and bury them in the ground for three years.

ps: There have been millions of finished novels “The Fifteen Years of Liaoning Zhai Fighting Iron”, welcome to follow up.

- Description from novelbuddy

Zhang Xuan traverses into a foreign world and becomes an honorable teacher. A mysterious library appears in his mind. As long as it is something he has seen, regardless of whether it is a human or an object, a book on its weakness would be automatically compiled. Thus, he became formidable.

“Emperor Haotian, why don’t you like to wear underwear? To think that you’re still an emperor, can you pay more attention to your image?”

“Fairy Linglong, if you continue to suffer from insomnia, you can always look for me. I have a way with lullabies!”

“You as well, Qiankun Demon Lord, can you cut down on the garlic? Do you want to stink me to death?”

…

This is an incredible story about the heritage between teacher and students, cultivating and guiding the world’s strongest experts.

Elric lived a traumatic life since childhood. Being bullied, detested by his family & having no one who cared whether he lived or died. The accumulated loneliness & suffering puts him through severe depression & he decides to take his life’s final decision… SUICIDE.

One day, his soul hears a voice calling out to him.

«Wake up, Elric. I am the God of Darkness. And I’m here to give you another chance at life.»

To God of Darkness, Elric replied with only two words.

«Fuck off!»

Accompany the Protagonist in a journey to achieve an Impossible task he’s given as he aims to become one of the strongest beings in the world full of Magic, Mythical creatures, Dragons and Gods.

…

Author: Antihero protagonist who’s a scheming mastermind & doesn’t trust anyone. No Harem, Romance or Fan-service here. MC is an extremely smart & quick witted person who knows how to adapt to situations quickly. But he isn’t an Edgelord or a Psychopath who kills people for no reasons.

Ye Feng was transported to a cultivation world, but unfortunately had no hope of cultivating immortality and could only live as an ordinary mortal. He only wished to live a peaceful life.Yet he didn’t know—The dog he adopted, because it ate his food, became a legendary demon king.The kitchen knife he casually forged became a peerless divine weapon, causing numerous experts to fight desperately for it.The young disciple he took in became an immortal lord that led an era, due to cultivating the techniques Ye Feng taught him.Even the skeletons he looked down on the most were ominous demon kings that suppressed countless worlds.Many years later, looking at the void shattered with a punch, Ye Feng murmured to himself: It turns out the peerless kings were myself all along…