The older students are off on a school trip leaving Akari and a needy Chinatsu alone.  Nadeshiko watches Himawari and Sakurako fight and remembers them as 
children.
Why do you act so condescending?
¿Por qué actúas con 
ese aire de superioridad?
¿A qué viene ese aire de superioridad?
Por que você 
está me rebaixando?