The children of the Custer family do not need sympathy. Even if they do not have strong power, they are arrogant.
The Custer family doesn't need help. They have their arrogance and will not ask for help even if they die.
The most arrogant of all, she is willing to turn into stars in the sky to protect her closest and only relative.
She couldn't become stronger overnight. After her rebirth, she kept looking for ways to become stronger, just to retrieve the memories of her previous life.
It is impossible to cut off the connection between them, because they are twins. No matter how they change, they are still twins who have a close connection.