A young man named "Ando" has moved to Tokyo to pursue his college dreams while still stuck in puberty, masturbating nonstop every day. He's currently repeating his third year due to failing exams. Frustrated by his constant failures, he blames his teachers for giving him bad advice. Just when all hope seems lost, a beautiful and legendary private tutor named Akari Niimura appears promising to help Ando improve his grades. Her unique teaching method involves using both sweet words of encouragement ("ame") and harsh insults ("muchi") alternately to confuse and stimulate his brain. Little did Ando know that this dirty talk technique would lead him down a path of sexual awakening!

上京して大学を目指している「和也」は思春期真っ只中で毎日オナニー三昧、現在も三浪中だ。「受験の失敗は教え方が悪いんだ…」と次々に前任者をクビにしていた。そんなどうしようもない彼の前に、必ず成績を上げてくれるという伝説の美人家庭教師ニイムラさんが現れる。その教育方法は優しく慰める「アメ」と厳しく罵る「ムチ」を交互に使いながら脳をバグらせて活性化させる驚きの淫語メソッドだった…！