After her mother and father died, Shiori and her little brother Shu were taken in by their uncle. Soon after, Shu was hospitalized with a hereditary disease, and Shiori was sent to the school as punishment for fighting back against her uncle's abuse. Meanwhile, Hibiki has taken over leadership of class four, and Hyo appears before him, to make him an offer he cannot refuse.
If you want to be my dog,
،إن أردت أن تكون كلبي
Wenn du alle drei Bedingungen
erfüllen kannst,
Si quieres ser mi perro,
Si quieres ser mi perro,
Si tu veux devenir mon chien,
tu devras accepter ces conditions.
Se diventerai il mio cane,
Se quiser que eu reconsidere,
Если хочешь, чтобы я пересмотрел 
решение, есть три условия.