My novel has a similar vibe to Akame ga Kill. Akame and Marry El Rose aka Blood Rose Princess are both executioners of justice who don't hesitate to shed the blood of tyrannical criminals for the sake of justice. They both are calm, cool but have many wounds.
However, my novel takes a different path: what if Akame, at the end of the story, doesn't go into seclusion alone, bearing all the burden of the world's wounds, but instead cares for a child and lives in a remote village, living as a young mother longing for the warmth of family, redeeming herself through nurturing her little daughter with love?!
That's what I did with the female protagonist with blood; I wanted to give the story a warm ending instead of a lonely one. Because as people who sacrificed for the world, they deserve happiness.
