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...?!
A child who can't use the bathroom alone 
is ten years too young to wear bloomers!
Kleine Kinder, die nicht mal allein auf Toilette
können, sind zehn Jahre zu jung für Sporthosen!
¡Una niña que no puede ir al baño sola
¡Una niña que no puede ir al baño sola
On ne porte pas une culotte
Una poppante che non è capace
 di andare in bagno da sola
Uma criança que não consegue
 nem ir ao banheiro sozinha