A look back at the first episode of the series with commentary provided by Ohnishi Saori (Shikimori-san), Umeda Shuuichirou (Izumi-kun), and Hidaka Rina (Hachimitsu).
you can see both the storyboard version 
and the final version of the opening.
you can see both the storyboard version 
and the final version of the opening.
kann man sich sowohl
das Opening als Storyboard
ils ont posté l’animatique
avec la version finale.
sull'account ufficiale di Twitter 
è possibile vedere la versione e-konte
você pode ver tanto a versão do storyboard
quanto a versão final da abertura.
есть сразу две версии опенинга —
 и раскадровки, и финальный результат!