After a fight Hayate, Nagi heads to the apartment complex to hang out.  But her “little sister” is the only one home.  This might be Nagi’s chance to find out what Ruri’s real goal is. 
You're easy enough to fool, you idiot.
Eres fácil de engañar, idiota.
Es que picas con todo, inocentona.
Mas você é uma idiota
 fácil de enganar.