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...
Huh? Wh-Why?
ماذا؟ لـ-لماذا؟
Wie bitte? W-Wieso das?
¿Qué? ¿Por qué?
¿Qué? ¿Por qué?
Quoi ? Mais pourquoi ?
Eh? M-Ma perché?
Hã? P-Por quê?
Что? Почему?