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...
It's been a while.
مضى وقت طويل
Da quanto tempo! Sei invecchiato, sai?
Давно не виделись. Как возмужал!