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.
There's no guarantee that all 
your hard work will pay off.
لا يوجد ما يضمن أن يُثمر كلّ عملك الدّؤوب
Nur weil man hart arbeitet, heißt das
nicht, dass es sich auch auszahlt.
El esfuerzo no siempre es recompensado.
El esfuerzo no siempre es recompensado.
Les efforts
ne sont pas toujours récompensés.
Non c'è alcuna garanzia che tutto
questo impegno sarà ricompensato, un giorno.
Não é só porque eu me esforço que
vou conseguir algo de volta.
Терпение и труд не всегда приносят плоды.