Vanish! ~Oppai no Kieta Oukoku~

Kenzou is sent to a neighboring country called Rochetoir to study magic. He is, however, trapped into announcing his dream in front of all students at an entrance ceremony, "I wanna shag with girls using magic." As a result, he is disliked by every girl in the country and his erotic ambition is about to fail... One day, Rene introduces Roco, a legendary witch girl, to him. It seems she is not allowed to use magic now because of her evil doings. Though he is skeptical, he decides to visit Roco...