Responses
I thought he wanted to change his future but yet he still going to use the demon sword and the power that people said it was like demon power. His brother also thought so since he called him a demon
The demon sword is more like a dagger.
??? I thought his goal was to kill the older brother and mess up all his plans. I guess it falls in line with saving the world but I doubt that's on the MC's mind ╮(￣▽￣)╭
I think I know how the sister died, I bet her brother also killed her or had her killed like they killed the MC.