The boy with demonic powers

Once upon a time there was a boy who had incredible powers. The old wise men feared his powers. The boy's powers were beyond comprehension, there was no one who could defeat him. The people turned their backs on him. It all started after that day!! It started one day when his mother fell ill… One day when his mother fell ill, a noble boy came and took his sister, when he was fetching a doctor. When the boy came home with the doctor, he couldn't see his sister, then he got worried and angry!! But that wasn't all they were twins so he could sense when she was in danger which she was right then. But he knew who had taken her. He ran and ran as fast as he could all the way there… But he came too late… He didn't have time to protect his sister... she had been r***d by the noble boy... When he saw his sister and the tears in her eyes, he got angry!! He took out his sword that was given to him by their father. He saw red and all he could think about was wanting to kill the boy who r***d his sister!!! But she stopped him and asked him to help her home. When they got home, their mother had been murdered and the doctor had also been murdered. He asked his sister to wait for him while he ran and got the guards. She nodded. When he returned home with the guards, he saw his sister sitting on the floor next to their dead mother's bed. She had cut her own throat. She could not live with the memories of the r**e, so she chose to leave this world. When the brother saw this, he broke down. Now he had no one left by his side or any family left as their father died in the war. "why" he thought. He ran away from home with the sword he was given by their father and ran into the forest by Mt. Fuji where his father's grave was. "Hey dad" he said after he sighed heavily, letting his head drop and let the tears streamed down his face as he knelt by his father's tombstone. “Dad. Mom got ill and it got worse, so I went to get a doctor for her but when I wasn’t home… THAT damn spoiled rich brat too Aya-chan away and r***d her!! When we got home mother and the doctor had been killed by someone. I asked Aya-chan to wait for me while I get help, so I ran to the guards and when we got home… I saw Aya-chan beside mothers’ bed with her throat cut. She had killed herself… Because of that DAMNED SPOILED RICH BRAT!!! Dad what should I do now? Please tell me.” He screamed.