The deal was to get 5 new members for the Karuta club.  Chihaya has to figure out a way to keep the room and deal with the band club.
Even if she had the fifth 
lowest grades in her class...
Aunque fuera la quinta 
desde abajo en su clase...
Aunque fuera la quinta 
desde abajo en su clase...
Ainda que suas notas estivessem
 entre as cinco piores da classe...