It was always her. Days turned into weeks. Weeks turned into months. Months turned into years. & soon, years turned into decades. And finally he was reborn as a human.

Y/n L/n was your everyday boy; helping out his family, caring for his younger brother, cooking with mother, and collecting wood with father. He was happy with this, although he never shows it, but it's not like he can. Y/n never cried, nor has he ever smiled. It's not like he doesn't want to, he just can't. That was until one day a demon entered the family. One that Y/n thought was a human. Oh, how wrong he was. How wrong the L/n family was. He cried for the first time that day. 「︎demon slayer x male reader」︎ 「︎OLD, VERY OLD」︎ 「︎completed ✔︎」︎

He was known to be reserved. And she was known to be the newest Upper Moon to ever exist in the era. Yet, she was so similar to him. He watched her often getting called upon by their Master. He watched her smile at something that he couldn't understand. That's when he realized, she had retained her human emotions. Unlike him, driven by a certain hatred within his demon soul. Yet, on the night he went out hunting together with her, watching the way she glowed beneath the moonlight. He felt a burning sensation within his cold heart, a feeling he found familiar but was long forgotten once. Was it love? He thought. Soon it turned into a competition, a constant need to see her every day. Getting irritated whenever the other Upper Moons were near her. He was known to be reserved, but oh well, he was known to be hot-headed when it comes to her.