[Demon Slayer Crossover] The Gemstone Person Who Slays Demons

As the first Gem in the world,

Red Spinel Ore awoke in a realm of darkness.

Why was she born?

What was the meaning of her existence?

She knew none of it.

Only a voice in her heart told her to kill the evil spirits of the world and protect humanity.

Holding fast to that belief, Red Spinel Ore ventured into human society.

On her very first day, she ran into Muzan, out for a stroll at the night market.

Captivated by the Gem's dazzling, crystal-clear radiance, Muzan unconsciously reached out to touch her.

A fierce, scorching burn shot through his fingertip and straight into the depths of his soul.

Muzan: ...

Red Spinel Ore: You there? A demon?

Muzan: What a tragedy. I'm the one who got burned.

Better keep my head down.

The very next day, the Demon Slayer Corps picked her up. In a daze, she let a human hand, warm as could be, lead her forward.

Kind old Tanjiro: Your hand is so cold. Are you feeling unwell?

Red Spinel Ore: I'm a Gem. I don't have a body temperature.

Tanjiro slowly typed out a question mark.

A rock? Turned into a person?

By day, Red Spinel Ore is a good-for-nothing who does nothing but laze in the sun. But as soon as night falls, she turns into an irritable sufferer of sunlight deficiency.

Kill them. Every last one of them!

"So that human lives would not be burned away by swift flames, a human girl offered up her soul in prayer to the Holy Grail, and the Gem was born." This is a story about salvation.

We met halfway along the road. I will never let go of the hand I hold tight.

A crossover with Demon Slayer, Fate, Fullmetal Alchemist, and Land of the Lustrous.

The fusion means the world of Demon Slayer, the divine artifacts of Fate, the abilities of Fullmetal Alchemist, and the body of a Gem.

It's intended to be an otome story. The pairing is undecided, but there will be one.

I changed the old outline because I want to write this. Ichikawa gave me a thorough spiritual send-off, so now I'm going to do the same to someone else.

Changed it to an upcoming work. If anyone's interested, I'll write it.

Theme: I don't want to stay up late