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.
Arguing is a waste of time.
لا جدوى من الجدال
Bringt nichts zu diskutieren.
Eso es perder el tiempo.
Pierdes el tiempo.
Inutile de gaspiller ta salive.
Non serve a niente strepitare.
Discutir não adianta.
Бесполезно спорить.