Despite her gyaru looks, Aihara Yuzu is an innocent high school girl with no experience and no prior loves. When her mother remarries, she's transferred into the prestigious "Aihara Academy" for young ladies. However, on her first day at school she happens to witness the diligent student council president, Aihara Mei, making out with her hot homeroom teacher... Yuzu returns home, unable to hid how upset it left her, when her mother announces Mei will be her new step sister, and they'll be sharing a room...?!
That said, if you didn't get it back 
from the student council,
Wenn du es von der Schülervertretung
nicht zurückbekommen hast,
Pero si no te lo ha regresado
el consejo estudiantil,
Pero si no te lo ha devuelto
el consejo estudiantil,
D’ailleurs,
si le BDE te l’a pas encore rendu…
Ah, giusto,
Bom, se você não recuperou ele do conselho,
Значит, если учсовет тебе его не вернул,