Responses

She is a bit possessive, but it is with innocent intentions. I see it as a form of jealousy because Kase-san is so in love with Yamada that she does not anyone to take or look at her beloved. Being easily jealous or a bit possessive is normal in a relationship. It’s like you want to monopolize your lover if it’s possible.
aint Kase-san too controlling? I noticed it as well during their highshool festival that she won't let Yui wear something short since she's too afraid that guyth would approach her..