Isekai Maou to Shoukan Shoujo no Dorei Majutsu - Volume 9 Chapter 1

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

Ein was a hitman on hire. A killer, a shadow, a death with insomnia, if you may.He had witnessed countless pairs of eyes dim as the light of life faded, leaving nothing but vile hollowness. Needless to say, the sight of a soul popping out of the dead body was a first.And it wasn't just any soul. It was the dead heir of Byers Holdings, the same guy he killed with his own hands. Turns out the rich boy Adriel had a horribly irritating and loud soul, but worst of it all - impossible to get rid of.Who would have thought that killing on a blue moon night could lead to being haunted?

Transmigrate to the world of One Piece, reincarnate as Saint Imu; Control the world government and sit on the throne of the void.He obtains the star map of the omniverse and contemplates the sea of dimensions.Gather all individual combat power, military power, financial resources and all material resources to open the star gate, conquer all dimensions, and break the limit of individual power!Unite or be destroyed, how to choose?

[WARNING]****** /THIS NOVEL CONTAINS EXPLICT SEXUAL CONTENT, CURSE LANGUAGE **** * ** ******* * **** AUDIENCE DISCRETION IS ADVISED“I’m in a relationship with a stunningly beautiful and irresistibly alluring girlfriend, whose charm and grace are unmatched. Winning her heart wasn’t easy, but I thought she was the embodiment of virtue and innocence. However, one day, I discovered a side of her I never anticipated—through our apartment window, I saw a connection with her ex that left me in disbelief. I never would have guessed she could have such a hidden side.”[A/N][this isn't a fast-paced novel, so for all those looking for an early revenge it's not coming now, it's just a casual novel read if you like it]