Over 400 years ago in the Heian Era Of Japan, Demons started to appear.
One sick human made it all happen in a blink of an eye.
Muzan Kibutsuji.
The Demon Lord. Growing the demon population every passing second.
No slayer was even close to killing him. All except for one.
Yorrichi Tsugikuni, the slayer with the original breathe style, the slayer with a red crimson blade.
Yorrichi's wife: Uta. Gave birth to the oldest daughter of their family: Y/n Tsugikuni.
Yorrichi finally had a successor for Breathe of the Sun. But right before things were starting to look better for him, a demon killed his wife while he was away.
But his child, some how survived. Y/n had single-handedly ripped the demons head off.
Yorrichi then decided it's better if he left his child in the Ubayashiki estate during the days he had missions.
Years went by and Y/n had a happy childhood with her father and uncle, then she started to train. She passed final selection, and was able to use the Sun Breathing Technique.
But she also developed a fear. A Fear Of Death.
She had seen death over and over and over again over the years that she was a demon slayer.
By the time she turned 18, she hated the fact that she was gonna die some day. She didn't want to, she..she just wanted to live.
Her father aged quickly over the years, and On night of a blood moon. Yorrichi was killed in front of her very own eyes.
Her uncle then convinced her to become like him, so that she will never fear death ever again.
Muzan was surprised, that the daughter of the strongest slayer would join him. She had sunlight immunity, but Muzan didn't absorb her since it would be losing a very powerful ally.
Over the course of 400 years, she gained the spot of Upper Moon One. Sharing the rank with her Uncle.
But she never knew that right before Yorrichi died, he passed Sun Breathing to the Kamado family. And that they would continue his legacy.
She still had her Human memories. Sometimes she wondered what it would be like if she died along with her mother that night.
Or that if she never became a demon.
Eyes red, like her Yakuta
Ancestor of, Tanjiro Kamado
She's inside the fortress dreaming
About the days, she wasn't a demon
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Yoriichi's Daughter (READER INSERT)
Fanfiction"I wonder what death feels like." Y/n Tsugikuni is the only daughter of the strongest demon slayer: Yorrichi Tsugikuni. Y/n had a very big fear of death. Just like her uncle Michikatsu Tsugikuni. She was trained to be the successor of Breathe of th...
