Osano and Ayato were... quite the duo. Both of them know eachother just because of Taeko. But their dynamic was quite intresting... Osano was a complainer type and Ayato was an emotionless type... this was weird to their classmates and students but they went along with it anyways.

Osano knew Ayato since Taeko introduced the guy to him. Osano found him creepy because he always had this blank stare, he wished Ayato just showed a bit of emotion.