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.
It's because you want to make someone happy 
that you can keep going, even when it's hard.
رغبتك في إسعاد شخص هي السّبب في
قدرتك على الاستمرار، رغم صعوبة الأمر
Ich will die Menschen glücklich machen.
Quiero que se alegren,
Quiero que se alegren,
Je veux les voir heureux,
Quando vuoi fare felice qualcuno,
riesci a tirare avanti anche nei momenti di difficoltà.
Eu aguento os momentos difíceis...
Я хочу, чтобы они улыбались.