(Y/N), Sabito, and Giyuu were all trained by Urokodaki-sensei after their families were killed. Years later, guilt, regret, and doubt were words (Y/N) carried throughout her journey. What happens when she meets her last childhood friend once again? "I am forever yours (Y/N)," Giyuu whispered to my ears. Can a tragic past lead to an everlasting bond? The world is a cruel place with demons lurking in the shadows. The only way to fight back and prove one's bravery are the Demon Slayers. The Kimetsu no Yaiba. _______ Tomioka Giyuu X Female Reader (Please feel free to change the gender ❤️) Warning: Demon Slayer is an R rated anime and this fanfiction will follow in the same category. This story will be based on the manga and will contain spoilers.