Arifureta Shokugyou de Sekai Saikyou (WN) - Volume 4 Chapter 1

Wen Er girl is unparalleled in beauty, but when people mention it, she has to sigh because she was born dumb. Unexpectedly, one day, the second girl Wen, who fell from the wall and hit Prince Jing’s body, suddenly spoke.

- Description from novelbuddy

In a world where dungeons were an essential part of it, Rein was trying to conquer as many as possible. They were the key to gain powers in the fastest possible way. So, to reach his full potential and to become the strongest, he became a great dungeon conqueror.With his trusty friends and lovers, he was definitely going to reach the peak alongside everyone. Join Rein and see how he went from strong to stronger and then the strongest.__________________1. The harem would not be too large(I'm not sure how many but probably just 4-5 main and few other here and there). All the girls would be getting their time and story.2. The story is starting when the MC is in the middle of his growth stage and not at the very beginning. But his beginning will be mentioned in the story in some form.3. I don't think I need to mention this, but obviously it will not have any NTR, rape or that kind of stuff. It is actually quite a wholesome story focusing mainly on adventure, action and bit of romance and slice of life.

“If I were ever reincarnated in another world, I’d be the ultimate villain.”That was the last thing Ace joked about before getting hit by an out of control ambulance–ironically, while saving his best friend.Truly, Fate has a twisted sense of humor.Now Reincarnated in a fantasy world, Ace isn’t a chosen one, a prodigy, or a hero. He’s a background nobody—an extra in a story already set in motion. Weak, talentless, and scorned by society, his new life seems doomed to follow the same path as his last: forgotten and meaningless.Destined to be killed off early in the plot, With no noble bloodline, no rare mana affinity, and a world stacked against him. Ace must rise from the ashes of his failure and break this tradegy, the only way he knows how.But Ace isn’t the same person he used to be.Armed with wit, ambition, and a twisted sense of justice, he refuses to bow to fate. If the world wants a villain, then a villain it shall get. He’ll climb the ranks, topple the so-called heroes, and make sure the world never overlooks him again.This time, the extra is writing his own story and it starts with CHAOS.But as he treads the line between fiction and reality, a bigger question looms—Was his reincarnation really an accident?

A college student, accidentally reborn into the world of Naruto, becomes a member of Uchiha who is destined to be exterminated.

In this cruel ninja world, in the face of endless wars and exclusion from the village, what will Uchiha Qing do?

PS: Later in the book, the protagonist will develop a system of immortal cultivation. Cultivating Immortals in the Ninja World, have you seen it?

- Description from novelbuddy