Imprisoned between memory and erasure, Tsubaki found her power in the margins—recording coded symbols on the walls of her cell using her own blood, which mirrored the Soragumo Archives' script. Her resilience fractured the sect’s illusions; time splintered, and their control wavered. Meanwhile, Hidemasa, piecing together her vanished trail, discovered her mother’s diaries—clues that led him to the mountain’s heart.