Kill the Hero - Chapter 16

Humanity was on the brink of destruction. Muyoung, an assassin from the Forest of Death, fell to his knees. There were corpses all around him. For years, he had worked for the Forest of Death and had finally been able to eradicate them. Now, he, himself, was about to die. He closed his eyes as he felt his heart stop beating.

when the most beautiful and popular girl of the whole campus offered Adam Eden, a certified loner the once in a lifetime offer to be the photographer and manager of her Only Fans account and also receive a percentage of her earnings, he was rightfully suspicious.However, in a desperate attempt to get some easy money, he went against his better judgement and accepted her deal.This decision would not only change his life, but would mark the beginning of his journey to Conquer every girl he's ever wanted–––––––––––––––––––––––––Every character in this book is 18 or olderNo netorase, some Netori (MC does the stealing not the crying)

A boy from 21st century Earth, met an accident and later was reborn in Naruto’s Ninja World.
He is born in Uchiha Family and becomes the useless brother of Itachi Uchiha and Sasuke Uchiha…. Let’s see how he changed the Naruto world.

- Description from Novelupdates

A man is reborn into the world of Avatar: The Last Air Bender as a waterbender from Katara's tribe. Best of all, he was the same age as her, and he had a system with him to help.He knows the future and a system that lets him continuously get stronger by completing quests or long-term missions, as well as giving him the ability to copy abilities from others for himself. He will become invincible in the world of Avatar, even more so than the Avatar himself.