Huh, didn't realize that the imouto is voiced by Haruka Tomatsu. It's different from how her voice usually is. Which is a nice change.
Also HanaKana is such a tease. I'll take my bet here that she will be voicing Takakig-san in the upcoming 2018 anime
Takagi-san, the Master of Teasing.
Uchiida Maaya's voice as the senpai (or previously kohai) really growing on me. Really accentuate her character. Also must protect those smile
Kamine and Gouda voice is really what I imagine how they would be. Liking it so far. This is one of my favorite pair. Anticipating their future shenanigans...
And the umbrella girl... there's something calming about her voice. Ah, and of course it's Minase Iori.