Upon learning of his grandma's death, Hayato returns to the café she ran for the first time in years. He plans to shut it down, but finds five girls who formerly worked at Familia living there, and they're determined to save it from demolition...
meaning they'll be part of 
the Kasukabe family.
أي أنّهم سيكونون جزءاً من عائلة كاسوكابي
Damit gehören sie zur Familie Kasukabe.
es decir, que será
como si fueran de los Kasukabe.
es decir, que será
como si fueran de los Kasukabe.
Ils seront des membres
de la famille Kasukabe.
cioè faranno parte della famiglia Kasukabe.
Ou seja, vão fazer parte
da família Kasukabe.
а значит, и частью семьи Касукабэ.