Demon Slayer One-Shots (Part 2)

Set Your Heart Ablaze Pt. 2 (RengokuxOC)

The backstory to how Kyojuro Rengoku and Kazuya Hirari (OC) met when they were younger + how they fell in love. 

If you don't like original characters, feel free to skip this chapter! 

Full OC description beneath: 

Full Name: Kazuya Rengoku (nee Hirari)

Gender: F

Eye Color: Light yellow topaz 

Hair Color: Black 

Ethnicity: Japanese 

Spouse: Kyojuro Rengoku 

Siblings: Kaseya Hirari (biological twin brother), Kumo Hirari (younger sister)

Parents: Asahi (biological father), Aika (biological mother), Mayumi Hirari (surrogate mother), Kenta Hirari (surrogate father)

Status: Active/Alive + In hiding 

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The color of fall was one of orange, red, and yellow, decorating the ground, the trees, the bushes, everything. 

And it was his favorite season. It reminded him of his brother and his father, two people he loved most in his life. 

But it was dark, perfect for demons to come out, despite the sunlight poking out behind the clouds. 

He gritted his teeth as he noticed a demon crouching beneath the bushes. He didn't dare go into the House before him, for it contained a Hashira, the Flame Hashira, Kyojuro's father. But his father was taking a drinking break. 

Again. 

The demon crept away as Kyojuro became distracted by the sudden appearance of Senjuro, his younger, who had gotten his foot stuck in a large crevice in the wall. 

"Sen, you have to stop-"

A scream suddenly wailed throughout the Estate, and his ears perked up. His seventeen-year-old self was on edge, realizing that the scream echoed from one of the neighboring houses. 

Picking up his father's blade, he walked out the door, leaving Senjuro to fend for himself, something he undoubtedly could. 

"Sen, wait for me here. I'll be back." Kyo warned his brother, before breaking into a run towards the source of the sound. 

He burst into a house. the stench of blood filling the air despite the terror only being recent. His eyes narrowed in on a silhouette, arms sprouting from everywhere on his body. The demon wasn't very powerful, he could tell. 

It showed no signs of a Blood Demon Art, but rather the use of brute strength. Crushed heads laid around the tatami mats, as blood was spread all over the wood of the house. A girl was crouched in the back, a large scratch tearing the skin out. 

"Leave, stranger," the demon hissed, "and maybe I'll spare you."

"No." he refused and armed himself with the sword. The demon frowned. 

"I recognize that sword-" its eyes widened. 

Readying himself with a defensive stance, the demon launched himself at the intruder, but the Hashira's son quickly rolled out of the way. 

Flame Breathing, First Form: Unknowing Fire. 

The girl let out a high-pitched scream, as the demon growled in anger, switching its target from the swordsman to the helpless woman beside him. 

With little time to react, Kyojuro threw himself in front of the woman, suffering a scratch to the stomach as a result. 

But it was a small price to pay as he slashed the demon's head off with one blow. Choking on its own blood, the demon disintegrated to ash as it fell to the ground, its eyes wandering around, getting the last glimpse of human blood before disappearing.