Ranko Kobayashi
A parody of Aim for the Ace! (エースを狙え Ace wo nerae!?), a tennis manga. Similar characters to that in the manga include "Madam Butterfly", a rich snob of a professional tennis player, and Hiromi, her suffering opponent.
Kaori Ichinose
Megu enrolls in an extracurricular girls' wrestling club, but things aren't quite what she expected. She soon learns the club's training program includes humiliating sexual submission to the senior female wrestlers and that the club's finances are secured with the prostitution of the girls to the members of a nearby all-male wrestling club. Megu's life is further strained when a rival wrestler Shinobu shows interest in her new boyfriend. This tension erupts at a no-holds-barred wrestling match. Megu's strength is pushed to the limit but she has a secret weapon—superhuman strength whenever she removes her tampon.