Nanami and Sakura's little sister, Chikage, joining the Earth Sciences Club. Chikage wants to join the geology group like her sister, but Nanami wants to learn more about meteorology and says the club is lacking. Mira wants the new girls to have lots of fun experiences so after remembering what they did last year, she suggests holding a barbeque to welcome them to the club. However...
but we're polishing them up 
together every night.
.لكنّنا نقوم بصقلها رفقة بعض في كلّ ليلة
aber wir feilen Abend für Abend dran.
Ogni notte ci mettiamo d'impegno per completarlo.
mas estamos melhorando
juntas noite após noite.
но каждую ночь вместе редактируем.