Bazett's barrier was supposed to prevent surprise attacks from the dolls, however Illya finds a little girl, Erica, sneaking into their school. For some reason Erica calls Illya "Onee-chan", and the two of them quickly hit it off. Meanwhile, a man claiming to be Erica's father appears. He seems kind at first glance, and while he came to pick up Erica, he's also...?!
Why are you biting her?
¡¿Por qué la muerdes?!
¡¿Por qué la muerdes?!
Pourquoi tu la mords ?
Perché la stai mordendo?!
Por que você está mordendo ela?