Chapter 216 opens with a discussion between the witches and the students about the possibility of recovering lost memories from a witch's ceremony. The witches are the seventh witches, and they have already held a ceremo--a ceremony to remember the past--and they are the ones who know the best way to recover the memories. They want to know if the memories will be able to be recovered from the ceremo. They also want to make sure that no one has decided to return to the world after the ceremony. They decide to leave the matter in Hiroshi's hands, and he will be the one to decide whether or not to return. Hiroshi tells the others that he and Mina have been destined to meet, and that she knows he has dated someone in the first year of his life. He asks them to look into his past with their power, but they refuse, saying that they are already in the third year of their studies and that they do not have the energy to do so.