Wakana felt relieved just for a moment after they got all of the materials they needed for Marin's cosplay, but then he's shocked to find out that he needs to finish the cosplay in two weeks. On top of that, his grandfather, Kaoru, hurts his back, so Wakana has to run the shop and he also has midterms. Wakana feels overwhelmed and gets depressed, wondering if he'll ever actually become a kashirashi at this point.
had absolutely no idea how long 
it takes to make clothes...
...لم أكن أعلم كم سيستغرق صنع ملابس وقتاً
Ich wusste nicht, wie lange es dauern
würde, das Kostüm zu nähen.
Je ne savais pas
combien de temps ça te prendrait.
non avevo alcuna idea di quanto
 ci volesse a fare un costume...
Eu não sabia quanto tempo
levaria para você fazer a roupa.
я понятия не имела, сколько
на всё про всё уйдёт времени.