Mercenaries from All Realms

Originally I just thought that the body would be digitalized However, when he killed the first ninja in Naruto, he discovered that he could actually become stronger by killing powerful enemies. He finally lost his moral integrity and transformed into a mercenary who could become one with anyone and become an enemy again. On the road to death, he embarked on a road of no return. By the way, I think this introduction is very good, so you can click on it and take a look.