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. 
It was stolen 13 years 
ago, and it's been
Sí. Fue robada hace 13 años
Ah, sí. La robaron hace trece años
Sim, foi roubada há 13 anos.