Inochi

Nobara and Kotori are identical twin sisters, one mischievous and the other well-behaved. After their father's death, they were separated, living with their grandmother and mother, respectively. One day, while they had swapped places, Kotori was killed. Nobara's mother, devastated by the loss of her daughter, lost all the color in her hair. Overcome with guilt, Nobara decides to take on Kotori's identity in order to shield her mother from further pain.