Your little sister, Natsuki, suddenly shows up in the middle of your busy days. Apparently she came to take care of you while she was on her summer vacation. This is the story about you and Natsuki one summer
You could at least turn 
it on while I'm here.
يمكنك تشغيله بينما أنا هنا على الأقل
Du könntest sie zumindest anschalten,
solange ich da bin.
Tu pourrais faire un effort
pour moi.
Ora che ci sono qui io, almeno...
Você poderia ligar 
enquanto eu estou aqui.