Yankumi's Final Act Of Honor!.The vice principal discovers Kumiko's yakuza background but she resigns as a teacher before he can take action. As she leaves, she insults and beats up her students, but then she by kidnapped by Kudoh and the Nekomata group. Shin tries to rescue her alone, while Kuma goes to get help from the class. At first the class refuse, but after some convincing they decide to help and rescue her.