Past life detailed

After Aja returned to his world, he was disappointed but surprisingly not shocked. Well not that surprising since he had already traveled through worlds once, so it wasn't as dramatic for it to occur again, but the thing is he had wanted this theory of his to fail, he didn't want to come back, and had wished for it hard. So when he did come back he did the first thing and that was to write the whole plot down. The good thing was that he was just a side villain and if he had calculated correctly then his beating was already over, after this point he had not gone to high school, and according to tradition if a noble family didn't have a child as the heir who had completed high school then they were to either have another heir or were to leave nobility. In his previous life, they had left nobility and got stuck in the war that followed. Aja lost everything in that war, his father and mother were brutally tortured and murdered, and he ran away with Sarah his sister but got caught, and to work as a slave to survive after they got captured. He protected Sarah as much as he could.

Sarah was young and hence she made many mistakes he had to take responsibility for her actions too, this got him to be noticed by their masters and somehow they became obsessed with him. They would enjoy his pain and suffering, his body was used, abused, and forced to overwork, but all reached its limit when they decided to kill Sarah. That's when he snapped his powers came out uncontrolled and he became the first person to unlock his mage power at the age of sixteen. That day he slaughtered all the people who had caused him harm and were present nearby to the village they were in. This act freed thousands of people like him and helped the protagonist defeat the main villains faster, but it was all for naught for him as he committed suicide ay before it was revealed that he was the one to do the deed.

Still, he was not counted as a martyr as no one knew who he was, this story about him was a side chapter after the epilogue had ended.

He certainly had to change that...