You call her 'Mienny*' without thinking much, but... *kojo-chan

I'm sure she's older than us.

Huh!? Is that so!?

I don't mind trivial matters like that.

You can call me however you like.

Mienny!

Mienny!

I know I said so, but...

Coming from you, it makes me angry for some reason...

Nee-san.

...Anego.

Likes being called as such