Behave yourself, or you might face punishment... Everyone admires Ayaka. She is one of the academy's most beautiful professors, possessing bright eyes, large breasts, and a brilliant smile. Yet she also has a tough side: she serves as the coach for the Karate Club. If you treat her well, you will be rewarded with various sexy favors... but if you anger her, you will be knocked flat on your back in no time. Up to now, only one man has been bold enough to provoke Ayaka: a brash new student named Togawa. One night, he discovers Ayaka engaging in a solo sexual act in the gym shower room and decides to intervene. Will Ayaka's temper flare up once again, or will she be overcome by her lustful desires?