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.
and it'd be selfish to only think 
about the karuta club's interests.
y sería egoísta solo pensar en 
los intereses del club de karuta.
y sería egoísta pensar solo en 
los intereses del club de karuta.
e seria egoísmo pensar só 
nos interesses do clube de karuta.