Yunge spent the first half of his life living for him, and it was just his best knife.
He was taken advantage of again and again, and the people around him were hurt. When he finally decided to live for himself, he came back to pester him endlessly.
This time she wanted to live for herself.
Concept: The heroine survived in a mass grave and grew up in a killer organization. She once admired her master, then grew up in the world, and slowly learned to truly love.