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...
And also that the amount 
I send back home is fairly high.
وأيضاً المقدار الّذي أرسلتُه
إلى المنزل عالٍ نسبيّاً
So anche che la cifra 
che mando a casa è piuttosto alta.
E também, a quantidade que mandei
de volta para casa é bem alta.
Как и то, что прилично отправлял домой.