Aoki tells Yushi that he must be suffering without his parents, even though he isn't.  She has good intentions, but Yushi is frustrated by her inability to see who he really is, and insistance that he has to be what she thinks he is.
It's good to be young!
من الجميل كونك يافعاً
Die Jugend ist wunderbar!
Es bueno ser joven.
Es bonito ser joven.
Ah là là, la jeunesse !
Beata gioventù!
Como é bom ser jovem!
Эх, юность!