Zettai Bishoujo Kaizou Club by Ulala - Adult Sex Game

The main character is good at inventing something odd. He is actually the boss of the science club, which is famous for the invention of strange creatures. He now secretly thinks, "I wanna adapt the girls!" He decides to call the adapted girls "Zettai Bishoujo". There are three Bishoujo at school, Sayaka, Maria and Mana....