I will be ready to die

I don't own Demon Slayer.

Hiroko Kamado, Tanjiro's twin, barely survives the night the Kamado family was killed. She becomes determined to be as strong as she can so she can kill Michal Jackson (Muzan) if they ever meet again.

Unlike her brother and sister, Hiroko has no heart for demons, unless of course they are Nezuko. This advances her power farther than even Tanjiro thought was possible.