Chie-chan is frightened when she feels someone is following her. 
Reiko-san can keep an eye on her during the afternoon, but since she has to work at night, Chie-chan is coming to spend a night at my place.
What was that?
ما كان ذلك؟
Was war das?
¿Qué fue eso?
¿Qué ha sido eso?
Qu’est-ce que c’était ?
Cos'è stato?
O que foi?