Ha ha, it took Yoshinoya-sensei to copy that hairstyle for me to see that it wasn't funny glasses.
...I thought they were funny nose glasses!glassesYunoMiyakoSaehair from the back of the headWhen I saw the anime OP, I thought of something...We have image marks, don't we?barrettecat's pawHiroNazunabun hairOur senpai have these...NoriAnd so ours are these...mouseYa know, when I first saw Nazuna's mark...