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.
She's so serious, she can't learn any 
other ways of seeing things.
إنّها جادةٌ جداً فلا يمكنها تعلّم طرق أخرى لرؤية الأشياء
Sie war so ernst, dass sie anders
nie Dinge sehen gelernt hat.
Es tan seria que no conoce
otro modo de ver las cosas.
Es tan seria que no conoce
otro modo de ver las cosas.
C’est quelqu’un de sincère,
mais elle a des œillères.
Forse proprio perché è così zelante, non è
mai riuscita ad adottare un punto di vista diverso,
É tão séria que não aprende
a ver as coisas com outros olhos.
Учитель Аоки такая серьёзная, 
поэтому не знает, что есть