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
Th-There's nothing...
لا-لا شيء هنا
N-Nichts drin …
M-ma qui non c'è niente...
N-Não tem nada...