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...
So they'll fight each other on Earth?
إذاً سيقاتلون بعضهم الآخر في الأرض؟
Und deshalb sollen sie hier kämpfen?
¿Por eso lucharán aquí?
¿Por eso van a luchar aquí?
Et elles vont se battre sur Terre ?
Quindi bisognerà combattere sulla Terra.
Então por isso que a luta é na Terra.
Поэтому бои пройдут на Земле.