Emiko Takamiyama  

, 高見山エミ子

Futo-oyama Buko is a leader of a girls gang and Yoko's greatest fear. She has a powerful father who is the chief of police in the city, making her a natural rival to Yoko, whose father heads the Yakuza. In episode 21, Yoko realizes that Futo-oyama Buko must be "ET," leading Ranze to question if her initials should be "BF" (using English order: Buko Futo-oyama). However, Yoko clarifies that this is just a nickname and her real name is Emiko Takamiyama.