She is the class president of Aika's class (1-A) and founder, club president of the school's Treasure Hunting Club. Eri is also a mystery fanatic and comes from a very wealthy family. <br /> <br /> Knowing that Aika has a Class C license, she roped Aika in to help with the investigation of Karen's mystery. <br /> <br /> (Source: Wikipedia) <br /><br />
