Hikari, Hibiki, and Mei, the most beautiful girls in the school, are always close friends with each other. At first sight, all three of them fell in love with the male teachers who were able to practice their education! After having a secret physical relationship in the empty library, compete for big cocks in the classroom in the health room! They took out a car under the name of summer training camp and asked for each other like monkeys in the Japanese-style room of the guest house!