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 transfer her personality 
to a temporary body.
ونقل شخصيّتها إلى جسد مؤقّت
e trasferirò la sua personalità 
in un corpo temporaneo.
e transferir a personalidade
dela para um corpo temporário.
а личность перенесу во временное тело.