Koharu gets frustrated by Hiyori trying to help her so much as she's fishing and Koi celebrates her sixteenth birthday.
You only say that because you
don't have to deal with him every day.
.تقولان ذلك فقط لأنكما لا تتعاملان معه كل يوم
Ihr alle müsst nicht tagein,
tagaus mit ihm verbringen.
Ustedes dicen eso
porque no tienen que vivir con él.
Vous vous le coltinez pas
au quotidien, ça se voit.
Lo dite perché non dovete 
avere a che fare con lui tutti i giorni.
Dizem isso porque não convivem com ele.