A Soft Spoken Voice and A Heart Of Gold

The sun began to rise as a girl laid in the rubble. Blood pooling around her. The war was finally over, after over a thousand years. They've won. She's freed her family from the curse. Her ten year old baby brother will live a long life. She hoped he'd forgive her. Forgive her for not living long enough to see him.
Ubuyashiki Keiko began to close her eyes when she heard the cries. "Keiko-sama!" It was hard, but she did it, she had to force her eyes back open. Once she did she saw a white haired, scarred man. The man froze, before lunging forward. "Keiko-sama!" He screamed as he landed on his knees beside her.
Slowly reaching his hand under her head as he picked her up slightly. "You're full of holes..." tears filled his eyes. The girl opened her mouth to speak but no words came out. "S-stay with me." He looked up. "Hey! Over here!" He looked down at her. Picking her up. She sobbed. "I-I know. I know. Just hold on."
He looked up. Panic filled his eyes as he shouted. "Oi! Brats! Over here!" He looked down. Realizing they won't reach them in time he began to move. Earning another pain filled cry from Keiko. "I-I know. I know." He looked up. "Tomioka help me!" He screamed, tears streaming down his face as he clawed his way up. "Tomioka! Kamido!" Her eyes began to drift shut. "No! Keiko-sama, stay with me!"
"S-sorry..." she couldn't hold on any longer. She died there.

Or... after the war with Muzan, a Ubuyashiki, a girl named Keiko. Fough with her men in the final battle. This final battle ended up with her life being taken. Then a thousand years later. She returns. To a new world, one were people are born with powers and a new evil, almost as bad as Muzan lives. She makes it her personal mission to stop him and save her world once again.
Will she die again? Or will she survive. Only time will tell.