Is a person's fate really determined at birth?
Does that mean that I will lose the right to happiness? In the face of power and ability, will brotherhood be shattered?
But, I still don't want to give up... Faced with the grudges, selfishness, and use of the previous generation, I will not escape, I will face them personally.
The hatred between the protagonist and his brother turns out to have been written down before he was born.