Tazuru Kazami is a death row inmate who murdered 89 people in just a few years. With her murders gaining a reputation as beautiful “art,” the number of copycat crimes has recently skyrocketed and become a social problem. In the midst of this, the imprisoned Kazami offers to hand over information about the copycats on the condition that she speak to a certain someone. The young man she chooses is a run-of-the-mill college student.