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
Natsuki    Now
I'm coming tomorrow...
ناتسوكي    الآن
سآتي غداً
Natsuki    Jetzt
Ich komme morgen …
Natsuki
Iré mañana
Natsuki
Iré mañana
J’ARRIVE DEMAIN
Natsuki    Adesso
Arrivo domani
Natsuki              Agora
Estou chegando amanhã...