As summer comes to an end, Hase comes to visit. But Akine says that Yushi's training isn't hard enough, and asks the landlord to make... a waterfall?!
but there are a lot of things 
that you can't know on your own.
لكن هناك أشياء كثيرة لا يمكنك معرفتها بمفردك
aber es gibt auch viele Dinge,
die man selbst nicht über sich weiß.
pero hay otras
que no sabrás por ti mismo.
pero hay otras
que no puedes saber por ti mismo.
mais y en a sûrement plus
dont j’ai pas conscience.
ma ce ne sono altri che proprio 
da soli non riusciamo a vedere.
mas tem bem mais coisa 
que não se nota sozinho.
но многое неизвестно даже тебе самому.