Pelle Parafins Bøljeband og Serum Serum

Girls mix a serum in the chemistry lab. The serum was supposed to give them fuller voices so that they could sing in Pelle Parafin's Bøljeband, but instead they stumble upon and invent a truth serum that forces everyone who inhales it to tell the truth.

あらすじの翻訳がないため英語で表示しています。