This 32-minute video is a voiced comic chapters that didn't make it to the anime adaptation, which starts from the later part of chapter 30 (after SSGIRLS' song discussion) until the end of chapter 32 of the manga, performed by the anime's voice actresses: Seto Asami as Asanagi Yori, Shimano Hina as Kino Himari, Koga Aoi as Mizuguchi Miki (briefly), and Nemoto Yuna as Izumi Shiho (briefly).
I was studying a lot and in my breaks I was reading the watamote manga. I really wanted to draw them so I kickly did some dumb sketches on Paint with a mouse lol.