Arashi is a mere 4th seat, but she is the 4th seat of squad 11. She is the long time girlfriend of Renji Abarai and daughter of Ikkaku Madarame. What happens on the day of her anniversary that has her broken and struggling with 2 separate personalities? Who is gonna be the one to protect the girl when her father is torn between his illegitimate child and one of his best friends?