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
Are you taking care of yourself 
properly living alone?
هل تحسن الاعتناء بنفسك بينما تعيش وحدك؟
Achtest du auch gut auf dich,
seit du allein wohnst?
¿Cómo te va viviendo solo?
¿Cómo te va viviendo solo?
Alors, tu t’en sors tout seul ?
Ti stai prendendo cura di te
 come si deve ora che vivi da solo?
Está se cuidando direitinho 
mesmo morando sozinho?