kn8485909 about 9 years ago "Mの世界" is the radio program that Nana Mizuki acts as personality. And Fumie Mizusawa was a guest of the recent broadcast. So they played a short drama about Tsubomi's underwear as a joke.
T-Danger about 9 years ago Nana Mizuki and Fumie Mizusawa talking about Tsubomi's panties? This I have to hear.