The director and her daughter explain to Onizuka and Nana how her so-called family of a previous life took advantage of the difficulties of Ririka, who was harassed at school and had just lost her father, to wash her brains. They convinced her that her misfortunes were caused by 'harmful waves' and that she had to free herself from them to be saved. Onizuka and company already know that the crooks exploit the girl financially, but Yutô receives an e-mail warning that they do not stop there! The GTO then starts on the track of the sect...