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.
...because I was thinking that 
Chihaya should have her own hakama.
porque pensaba que Chihaya 
debía tener su propio hakama.
porque pensaba que Chihaya 
debería tener su propio hakama.
...porque andei pensando e acho que Chihaya
 devia ter o próprio hakama.