Everything For You {Muichiro x Y/N}

Story about Y/N being a tsuguko of a hashira, Muichiro Tokito. Her ancestors have invented a new breathing style, Mist breathing, but her family is being brutally killed by a demon at young age of five. But, Urokoudaki Sakonji has been in her village, yet not in time to save other villagers but in right time to save Y...