The Last Shadow Slayer (TanjiroxOc)

Miyako Yamikawa. The last member of the Yamikawa family, a family that everyone in the Demon Slayer Corp had assumed had been completely killed off, meaning their breathing style had been lost. If only that were the case.

When Miyako meets Tanjiro at final selection, her initial goal was to deliver him to Urokodaki's home and be on her way to travel solo in search of her family's killer, but when she was assigned to keep an eye on him and his demon sister, her whole plans were forced to change.

Follow Miyako as she goes on a journey to incite revenge on the demon who slaughtered her family, Muzan Kibutsuji, and watch as she is forced to face her past as her views on life and love are changed by a boy with bright red hair and a powerful sense of smell.