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 I will become Yamada Kai.
وسأصبح أنا يامادا كاي
und ich werde den Namen
Yamada annehmen.
e io diventerò Kai Yamada.
e eu vou me tornar Kai Yamada.
а ещё я возьму фамилию Ямада.