The night demons destroyed Y/N’s village changed everything. Saved by one of the Hashira and taken back under their protection, she is given a second chance at life—one that comes with relentless training and the expectation to become strong enough to fight the monsters that took everything from her. Under the Hashira’s guidance, she endures years of brutal preparation to become a Demon Slayer. During this time, she develops her own unique style—Angel Breathing—a technique built from precision, grace, and unwavering resolve.