You have Kasuga Takeshi's portfolio in the first screen cap, you have Kasuga Kyosuke in the telephone booth in the second screen cap, and Kurumi and Manami (it says it right on her sweatshirt!) in the third!
HINT: So far, it's just been a single episode aired on AT-X, but it's not a series, more like a special. It's currently unknown whether more of the manga will be adapted or not.