Eri is a mentor and a sort of mother figure of Team Star. When Team Star was created, she helped the other bosses train their Pokémon and acted as a mediator when arguments broke out. On the outside Eri appears aggressive and hardcore, but deep down she means no harm. She was bullied by her jealous classmates after she became the new class queen. Eri was deemed by her peers as a great Trainer, very athletic, and pretty. She even befriended the instigator of the rumors, Carmen.