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...
what do you think 
the reward for you will be,
،ماذا ستكون المكافأة برأيك
wird man dich als Auslöser des Ganzen
sicher großzügig belohnen.
une grosse part du gâteau te reviendra,
à toi qui es à l’origine de tout ça.
quale pensi che sarà la tua ricompensa,
o que acha que será sua recompensa,
как думаешь, что получишь ты,
благодаря которому всё это случится?