While on the way to school, Hayato discovers that Karen isn't wearing panties. He spends the rest of the day trying to avoid seeing under her skirt...but Karen still seems a little upset.
She probably took a quick shower
Sie hat sicher kurz geduscht
Seguro que se dio una ducha rápida
Seguro que se dio una ducha rápida
Avrà semplicemente fatto la doccia mattutina
Ela provavelmente 
tomou banho de manhã