Seina Yamada has been waiting so long to return to his home, Earth.
But so much has changed; his sister is engaged to Kiriko's brother Kai,
and his parents' old store is now a huge mall.
Furthermore, he is to stay at Kiriko's mother's house...
Then, starting today, 
this is your home, Seina-chan.
إذاً ابتداء من اليوم، هذا هو منزلك يا سينا-تشان
Von heute an wirst du hier wohnen,
Allora, a partire da oggi 
questa è casa tua, Seina-chan.
A partir de hoje, esta é a sua casa, Seina.
С сегодняшнего дня твой дом здесь, Сэйна.