I love these so much. I can remember maybe three other images like this. I wish artists would do this more. It should have its own tag, even!
Well...
I'm sorry to say this, but...The panties which I wear are 'Mise-Pan.'
Because having people see my ordinary underwear is embarrassing.
Mise-Pan are panties to wear with the feeling that one doesn't mind if one's panties are partially visible.