Thank you I see now, I think if I give good reasons why they have these motives, things that either I or others can relate to, even if they are for bad reasons but it's a fictional story so it can work lol. I think a good way I can explain is the grandfather felt weak as a child because he felt his dad maybe gave more attention and respect to sibling brother? Maybe the grandfather took it the wrong way that his brother was given more respect because he was to be chosen to inherited the family heir. Or the brother was better skilled at martial arts training which his father saw better potential in his brother than him and because his brother was better at control than he was? So this drives the grandfather to go against his brother and his father tempting to kill them both and take the family heir for his own? But when could I fit in the curse? So I'm finally getting somewhere! Well this is supposed to be more cyberpunk sci fi. And the MC is the grandson of the story who has like some sort of good/evil struggle within him like a programed chemical cursed in his veins. When he starts to do bad things or kill, the chemicals or curse in him grows stronger and his evil side starts to grow and take over but he doesn't want it to. It's like he's a completely different persona when his evil side starts to rise and does evil things but he remains mostly on the good side which tries to fight against his evil one. He's supposed to of inherited it which started through his grandmothers side and then passed on through his father. Though I'm not sure how this inherited curse or power could make sense? He has anger for being born from his family because of this and the actions they take, like deceiving him and trying to kill him, he is against their actions and motives and wants to end them and finish off his family curse Yes he had anger towards his father, like he didn't feel loved enough and his sibling he felt got more attention than he did which was also jealousy, driving him more mad and wanting to take his father out (who is actually the MC's great grandfather and the father of the grandfather. I know it sounds confusing this family tree lol) so he could run the organization but in a more ruthless way because the anger got the best of him, this is where the grandmother then comes into the picture who was sent out to marry him to get close to him and basically feeds of of others hatred which is drawn to her. And when he finds out and kills her the curse (or chemical is unleashed causing the family to have a never ending field hatred curse apron eachother. Now every action that happens drives another reason for hate and vengeance through the family. Yes this would most definitely affect people from feeling any love or remorse, like a demon or devil in a sense their evil actions take over without care. I don't have anything involving breaking this curse and so that love and peace can return to the family, not that there was really any real peace to begin with. Maybe the MC has some peace within him the most but also evil and he hates his entire family bloodline for this and the mysterious one responsible for causing it in the past he learns. There's no true happy ending here, just an ongoing conflict of family hate until they are destroyed or defeated which only the MC can do.