Witch Sisters, an aster (Kyoko Kazama) and the Miyu (Kaoru Sakurako) come over to the terrestrial world in tripos of the witch University. "The Koto which lets the problem write magic to the human man whom a university chose and propose from his mouth." A time limit is one month. But must be never in love with the man of the partner. And with a man sent into such a Miyu….
