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...
Well, if it's helpful 
to my parents, I'm glad,
،حسناً، إذا كان هذا ينفع والدَي، فيسرّني ذلك
Na ja, wenn ich meiner Familie so
helfen kann, freut mich das natürlich.
Beh, sono contento se è d'aiuto ai miei genitori,
Bem, se ajudar os meus pais,
eu fico agradecido.