Quote Originally Posted by David75 View Post
But his mental state makes it impossible.
Only when he was alone. Because of his programming, he thought that he needed to be alone and shoulder his mission by himself. He couldn't trust anyone else to do it or even help him because it was a mission assigned to him and his ONLY reason for living. That's why he never sought out companions after his original siblings died.

However, when he realized he was becoming evil, he decided to suicide and went on a mission to find a successor and kill himself. To do that, he needed to accomplish a few things, things he had never even tried before because he never really needed to in order to fulfill his mission. So he befriended the demon queen and generals, tried to understand them in order to help them, and in the process found a place to belong.

Even though he is artificial, he is still human as a base. The reason he was going insane is because he was stuck with his mission and never really tried anything new. He kept learning skills but never learned to truly socialize and care about the people he was protecting. Now he has. He is no longer just a machine with one goal.

If he does survive, he will likely realize his desire to destroy the world will be gone. He can continue to protect it with his friends through peaceful means, after all, and the void of his raison de etre has now been filled with something else, allies that he learned to care for.

Idealistic and cheesy? Yes. But it makes sense with what was explained in the previous episode and his internal thoughts.