I have always hated villains from the bottom of my heart

Not only our protagonist, but anyone living in a world that always has to witness horrific scenes, as well as being full of sorrow and loss caused by those meaningless and disastrous wars, everyone hates it. Because it is what has caused them to fall into the situation of losing everything, the things that are called very precious in their lives. Therefore, many people wish that they would become truly strong. So that they can stand up boldly and fight against those cruel ones. And among the people who carry such steadfast wills, there is also our protagonist. So that girl always wished that she could survive at all costs. So that one day, she could become truly stronger, thanks to her diligent and hardworking training. Then afterwards, she could decisively, annihilate all of them.