Onanie Shoujo to Hentai Kyoushi no Koufuku na Ketsumatsu

School teacher Satou grumbled as he walked the halls of school. He heard the distinct moans of pleasure emanating from the girls' toilet. Nadeshiko Hoshino --- the pretty student council president. Kanako Yoshino --- a very well-mannered young lady. Satou felt his stomach drop with undeniable lust. He couldn't help but take advantage of the situation, and interrupted them. "I'll protect your secret..." he proposed, "You have to do whatever I say. Do you think you can keep pace with my desires?"