MK0

He was blind in his previous life due to a beating. After reincarnating, he remained without his left eye, but don't worry, something cool is coming later.

Yes, I know, but it started to bother me as well. No matter how mentally unstable a person is, they won’t just start committing mass murder simply because they can. That's why the first two chapters will provide context about the MC's mindset, a foundation to justify his actions, so it doesn’t feel too forced when he begins to act.

...I was kind of literally portraying him as a sociopath with a superiority complex over the human race. Let's be honest, a person who performs human experiments and seeks to create a Philosopher's Stone with human souls, even if they're criminals, has long abandoned their humanity. Normal people don’t do what he does. Like it or not, the MC will be a villain, even though he doesn’t see himself as such and even despises the act of killing, seeing it as something barbaric and vile.

"I think he would be upset at first and then relieved that Rin moved on. People tend to think that Obito went crazy because of her death, when in reality, he had been a child on the battlefield from an early age. Rin's death was just the last straw that made him snap.

Yeah... it had nothing to do with your preferences being briefly distorted

A translation error, perhaps? I think he meant Mangetsu, Suigetsu's brother.

It's crazy how the Naruto world fuck with people's minds. Kisame may not be the best person in the world, but without a doubt, he was an honorable guy and definitely worth having as a friend.